I was taking Mrs. Bang for a walk last night, at 2am or so, and mulling over my ideas for a dauntingly large new feature I want to add to my music theory site. One idea spun from another, and I started thinking about mad libs — you know, the game where you fill in the blanks in a pre-written story with input from your friends (“adjective about a person”, “action ending with -ing”, “unusual animal”), then read the resulting silliness aloud.
Well, an online mad-lib engine would be pretty trivial to write — just collect the words from the user first, and plug them into the text of the story in the right places. You could play madlibs at a party without anyone knowing beforehand what the final result would be, or even play alone.