# Brainstorm Image Cartoon: Find, Draw and Use One

Canonical: https://sakura5.app/blog/brainstorm-image-cartoon/  
Published: 2026-11-04  
Author: the Sakura5 team · 8 min read  
Updated: 2026-11-04  
Publisher: Sakura5 (https://sakura5.app) · support@sakura5.app

> **TL;DR:** A brainstorm image cartoon, explained: what it shows, where to find one you can use, how to draw your own, and how to brainstorm with cartoon sketches.

![Brainstorm Image Cartoon: Find, Draw and Use One](https://sakura5.app/img/blog/inline/brainstorm-image-cartoon-1.jpg)

A brainstorm image cartoon is a simple drawing that shows ideas being generated — usually a person under a storm cloud full of lightbulbs, a head with a thought bubble crammed with doodles, or a group around a whiteboard covered in sticky notes. You can download one from a stock or clip art library, draw your own in a few minutes, or, more usefully, use cartoon-style sketches as part of the brainstorm itself.

Most people searching for this want one of two things. Some need a picture for a slide, a worksheet or a team announcement and want it fast and legally usable. Others have noticed that drawing ideas, even badly, gets them unstuck in a way that typing a list doesn’t. Both are reasonable, and the second one is where the real payoff is.

This guide covers where to find a brainstorming cartoon you’re allowed to use, how to draw a simple one yourself, how to run a brainstorm with cartoon sketches instead of words, a worked example for a school science fair, and a short FAQ.

## What a brainstorm image cartoon usually shows

The visual vocabulary for brainstorming is small and very stable, which is good news if you want to draw one. Almost every brainstorming cartoon is built from a handful of symbols that readers recognise without a caption:

- **The lightbulb.** The oldest shorthand for a new idea. One bulb means an insight; a dozen bulbs raining from a cloud means a brainstorm, literally.
- **The storm cloud over a head.** A pun on the word itself. Lightning bolts, question marks or tiny lightbulbs falling out of it.
- **The thought bubble.** A rounded cloud with small circles trailing back to the thinker, filled with doodles, arrows and half-finished words.
- **Sticky notes and a whiteboard.** The workplace version: people pointing at a wall of coloured squares.
- **Gears and arrows.** Used when the cartoon is about turning ideas into a plan rather than having them.

The term itself goes back to Alex Osborn, the advertising executive who described group brainstorming in the 1940s and 1950s; the [history of brainstorming](https://en.wikipedia.org/wiki/Brainstorming) is worth a skim if you’re writing a lesson or presentation around the image. Knowing the symbols matters for a practical reason: if your cartoon uses them, nobody has to read a caption to get the point.

## Where to get a brainstorming cartoon you can actually use

The fastest route is a stock or clip art library, but check the licence before you paste anything into a slide that will be shared outside your classroom or team.

- **Free stock libraries** with permissive licences let you use images in presentations and posts without attribution in most cases. Search for “brainstorming illustration” or “idea lightbulb cartoon” rather than the exact phrase, because illustrators tag by subject.
- **Clip art built into your slides app.** Keynote, PowerPoint and Google Slides all include icons and simple illustrations. A lightbulb icon plus a cloud shape gets you most of the way to a brainstorm cartoon in two minutes.
- **Paid illustration sites** are worth it when the image is going on something public and permanent, like a website or a printed poster.
- **AI image generators** will produce a cartoon on request. Be careful with any text inside the image — generators still mangle lettering — and check the tool’s terms for commercial use.

What to avoid: dragging an image straight out of a search engine’s results. A cartoon being easy to find doesn’t make it free to use, and comic panels in particular are almost always someone’s copyrighted work.

## How to draw a simple brainstorm cartoon yourself

You don’t need drawing skill for this. A hand-drawn cartoon often lands better on a worksheet than a polished stock image, because it looks like it came from a person rather than a library. Give yourself ten minutes and a thick pen.

![How to draw a simple brainstorm cartoon yourself — brainstorm image cartoon](https://sakura5.app/img/blog/inline/brainstorm-image-cartoon-2.jpg)

*A circle for the head, a rectangle or a single line for the body.*

### 1. Draw the thinker as a circle and a body line

A circle for the head, a rectangle or a single line for the body. Add two dots for eyes and a short curve for a mouth. Resist adding detail; detail is what makes amateur drawings look wrong.

### 2. Put the cloud above, not beside

Draw a bumpy cloud above the head, roughly twice the head’s width, and connect it with two or three small circles getting smaller toward the head. Above is the convention for thought; beside reads as speech.

### 3. Fill the cloud with three to five symbols

A lightbulb, a question mark, an arrow, a star, a tiny sketch of whatever the brainstorm is about. Five is plenty. A crowded cloud reads as confusion rather than creativity.

### 4. Add one sign of motion

Short lines radiating from the lightbulb, a couple of sparks, or one bulb falling out of the cloud toward the thinker. That single movement is what turns a static picture into an “aha” moment.

## Using cartoon images to brainstorm, not just to decorate

The more useful idea hiding in this search is that cartoon sketches are a brainstorming method in their own right. Drawing forces you to make an idea concrete. “Make the onboarding friendlier” is vague; a quick sketch of a person tapping a big friendly button is a specific proposal someone can react to. This is the core of sketchnoting and storyboarding, and it works for people who insist they can’t draw. If you want to go deeper on picture-based notes, our guide to [visual note taking apps](https://sakura5.app/blog/visual-note-taking-apps/) compares the tools.

![Using cartoon images to brainstorm, not just to decorate — brainstorm image cartoon](https://sakura5.app/img/blog/inline/brainstorm-image-cartoon-3.jpg)

*This is the core of sketchnoting and storyboarding, and it works for people who insist they can’t draw.*

The catch is that drawings are hard to organise. Twenty thumbnail sketches on a page don’t tell you which ideas belong together or which one is the strongest. A workable pattern is to sketch first, then move the ideas into a mind map where each sketch becomes a short labelled node on a branch. [Mindmap AI](https://sakura5.app/mindmapai/) works well for that second step: you put the topic in the centre of an infinite canvas, add a branch per theme, and drop each sketch’s idea in as a few-word label. If a branch looks thin, MindMap Pro can expand any node into sub-ideas, which is a quick way to find the angle you haven’t drawn yet.

Keep the drawings and the map side by side. The sketches carry the feeling of each idea; the map carries the structure.

## A worked example: a cartoon brainstorm for a science fair

Say Maya, a seventh-grade teacher, has 26 students who each need a science fair topic in two weeks. Previous years, about a third of the class picked “volcano” or “plants and music,” and she wants more range. She has one 45-minute lesson for the brainstorm.

**Minutes 0–5.** Maya projects a hand-drawn brainstorm cartoon: a stick figure with a storm cloud full of lightbulbs, a magnifying glass and a question mark. She tells the class the cloud is empty until they fill it.

**Minutes 5–20.** Each student folds a sheet into eight boxes and draws one question per box, cartoon-style, about something they’ve noticed at home or outside. No writing except a two-word label. The rule is quantity: eight boxes, no erasing. That gives the class up to 208 sketches.

**Minutes 20–35.** Students pair up, swap sheets and circle the two sketches on their partner’s page they’d most like to see answered. Maya walks the room collecting circled labels on the board: “cold soda fizz,” “dog water bowl,” “phone battery heat,” “bread mould,” and so on.

**Minutes 35–45.** She types the board into a mind map with five branches — food, animals, electricity, weather, materials — and projects it. The class can see that electricity has two ideas and food has eleven. Each student picks a topic, and anyone whose pick duplicates a classmate’s chooses from a thinner branch.

The result isn’t a magic number of unique projects. It’s that every student leaves with a topic they drew themselves, and Maya has one map she can reopen when someone wants to switch.

## When a cartoon is the wrong tool

Cartoons are great for opening up a problem and weak for closing it. A few situations where you should switch to words:

- **Precise requirements.** A budget, a deadline or a legal constraint needs exact text, not a doodle.
- **Abstract ideas with no visual form.** “Improve trust” is hard to draw without falling back on a cliche handshake. Write it down and break it into parts first; our guide to [creative thinking techniques](https://sakura5.app/blog/creative-thinking-techniques-ideas/) has a few ways to do that.
- **Formal audiences.** A cartoon brainstorm image suits a classroom or a workshop. In a board report it can read as unserious, so use a clean diagram instead.

The general rule: draw to generate, write to decide. If you’re ready to turn a page of sketches into something structured, the free plan of [Mindmap AI](https://sakura5.app/mindmapai/) gives you the full editor, built-in templates and outline view to do it.

## FAQ

**What does a brainstorm cartoon usually look like?**

Most brainstorm cartoons show a person with a storm cloud or thought bubble above their head, filled with lightbulbs, question marks and small doodles. Workplace versions show people at a whiteboard covered in sticky notes. The lightbulb is the key symbol, because readers have long recognised it as shorthand for a new idea, so it works without a caption.

**Where can I find a free brainstorming cartoon image?**

Use a free stock library with a clear licence, or the icon and illustration sets built into Keynote, PowerPoint and Google Slides. Search for broader terms like “idea lightbulb illustration” rather than exact phrases. Avoid copying images straight from search results, since comic panels and cartoons are usually copyrighted by the artist who drew them.

**Can I brainstorm with drawings if I can’t draw?**

Yes. Brainstorm sketches only need to communicate an idea, not look good. Stick figures, boxes, arrows and a two-word label are enough. The value comes from making each idea concrete enough to react to. Keep sketches small and fast, aim for quantity, and sort the best ones into a mind map afterward.

**How do I organise ideas after a cartoon brainstorm?**

Give each sketch a short label, then group the labels into four to six themes and put them on a mind map with the original question in the centre. The map shows which themes are crowded and which are thin, which helps you choose. Keep the original drawings nearby for the detail the labels leave out.

About the app: [MindMap AI: Mind Map Maker](https://sakura5.app/mindmapai/) · App Store: https://sakura5.app/go/mindmapai?from=/blog/brainstorm-image-cartoon/