School events/spirit days?

Any suggestions for really fun spirit days or events? I mean, what would YOU really want to do at school?

School events/spirit days?
I personally really hate the spirt weeks at my school (mostly because the only "fun" thing is wacky tacky day where all the girls dress like sluts and we only get a spirt week if we all act "good") but I digress. If I had to pick something I guess it would be...I don't know edible food day. OH or a day where you get to go to what ever class you want to (sure it has to be taught by a teacher in your grade) Or maybe an event (better if a day) where the kids get to prank/throw water ballons at the teachers.





If I come up with any more I'll try to edit my answer with them.