Rules of this game:
First I'll post a picture that is fan art someone made based on some source media (an anime, cartoon, video game) and then other forum members can guess what it's fan art of. I'll post a reply to each of your guesses, telling you if you got it right or wrong. If you got it right (guessed the right source), then it's your turn to find fan art on the net, and post it here, then others can guess the source. This will keep going until some moderator thinks the game has gone on long enough and locks the thread.
For example, if I post a Gundam Wing fan art picture, and someone guesses Gundam Wing, they win, and they get to make the next post. Of course that's a pretty well known show, so it wouldn't be good for a game that takes vast knowledge of possible source media. Pick an obscure anime, cartoon, or video game to make it more challenging.
Ok, here's the fan art I'm posting. Guess what it's based on.