There's a lot of you on here that draw, and I'd imagine you're looking for ways to have fun with it and stretch your skills (or just goof off?). This is a game I play when I want to draw something I wouldn't normally think of myself, though I'll cut out the ending portion here to respect the Prime Directive.
1. Go to DeviantArt
2. Either look at most recent posts in general or search the most recent posts tagged "original character"
3. Remember to turn on the safe mode filter and try again
4. Draw your own take on the most earnest character you encounter, one drawn with literal childlike enthusiasm
Here is my last attempt:
Again, I find this to be a really fun way to explore things like character design and color schemes I wouldn't have considered trying myself. I'd love to see other peoples' interpretations of things like this, so if you are interested in this game please post your results here. :)