telophase had some fun with this a little while ago, so I thought I'd give it a try, because it's too quiet on LJ for me:
Choose two of my icons [or heck, two characters from two different authors' works that you know I've read, manga, SF&F, whatever] and I will tell you what happens when those two people (or things) get together. Definition of "get together" may vary. Response may be phrased in the form of a snippet or sentences of random blathering.