21st parties have always been something to go to town with for us. Thankfully we've only had to do three of them. Here are the highlights, they all ended up similar in some ways, but I think that the boy's individuality had an impact on the finished event.
Jesse asked for a Car Rally: we ended up giving him an art rally! An innovative exercise where everyone had to drive around following clues and producing an artwork inspired by various poems, photos and stories from Jesse's life.
Keren asked for a Games Night: we ended up giving him a randomly generated life size snakes and ladders game where the participants also collected a score from the 9 games they played at the end of each round.
Nathanael asked for a Murder Mystery: we ended up giving him a murder mystery where the players had to earn clues by writing limericks and completing Nathanael identikit images.