Writing prompts?

I'm bored and want to write something, like /really/ write something. I used to do a lot of fanfiction, but since I'm not into as many fandoms as I used to be, my heart wouldn't be in it, unless you suggest a fandom I really really like. But if you wanna see anything written, I can surely make it happen whilst simultaneously getting in the writing practice I so desperately need, and we'll have killed two birds with one stone.