i want to prank my friend?

[dustin-]

ok i want to prank best friend(both males) (nothing at there or my house) like the only time i could prank them is at school so yeah, ok i'll let you know about my day i can get to the school early and stuff so yeah so here's my school day gym 1st p ok we have to change and we can take showers after but really don't have to then math, computers, FACKS, lunch break, he has study hall every other day, sciense , english , and we stay after school to lift weights sometimes. ok heres one that i already have in my mind i could like get all of his clothes wet and then give him like girl clothes so any other good pranks? plz really wanna get him good (something with icy hot? itching powder in his underwear