I need help coming up with April Fools Day Pranks

It needs to be school bus safe.
FUNNY!!!!
And original.
Any ideas?
(Oh, and must be free...or using stuff people would have around the house).
Thanks and please help!!!!!

I have a just a few pranks in mind depending on who you want to prank, but there's always Google if you don't like them.

• If you have a school project due within the next few weeks, trick your friends into thinking its due that day (April Fools Day obviously).

• Ask them if they've started their "project", even though you don't actually have one. (I did this to a friend who missed a day of class. She got grounded for "not doing her project" after she told her parents the "day before it was due".)

• If you've had a cast before, put it back on for the day and tell people you broke it overnight.

@ThatRandomUnicorn
Those are great! Sadly, I've never broke anything, and I don't have any projects due..... /:
But, I came up with a genious plan!

I made a letter saying I won a contest to meet 5 SOS-We both love them-and I get to invite a friend. I'm gonna print it off and give it to her. But, on the bottom, it says Copyrights Erin 2014 April Fools Day, Inc. Hopefully she reads fine print....lol....thanks anyway! Maybe someone else will you use it!

@ShyGirlMeetsStarstruckBoys
Make sure you put a record company logo on the top of the page to make it look more authentic ;)