It is all thanks to the wonderful ideas people give me :D

Collaborating is so cool! Any BigBang challenge is a good starting point. I started out with bandombigbang, which was so fun to do and very well organised, and then I signed up for bandgirlsbang because it was a nice excuse to draw pretty girls. There are, of course, inception_bang and i_reversebang for Inception. If you like Merlin, there is paperlegends (the artist sign up is still open!) and there is also sherlockbigbang (they just finished posting, I think, but you could keep an eye on the comm for the next round!).

Mind, not all authors want to collaborate actively. Some will just send you the fic and nothing more, but other might want to talk it out with you and you can end up bouncing ideas between you :)