1.Set up a stand [any food stand, I'm just going to go with a waffle stand]
2. Yell at the top of your voice "WAFFLES FOR SALE".
3. If a customer comes along and ask for a waffle say, "sorry, but we don't sell waffles!, we sell jam!", if the customer ask why are you advertising waffles if you sell jam say, "sir, we clearly sell waffles" then point to the sign.
4. If they ask for jam then say, "sorry, we only sell waffles!", if they ask for waffles and jam say, "sorry, this stall is now shut, come back soon!".
This is a really funny prank for winding people up, I've tried it its really fun.
first, fill 2 glasses with a neck with any red liquid(ex:pomogranate juice) u can find. tell someone that u know a magic trick, and that u have to put there hands palm down on the table. tell them to close there eyes, sit down and put the glasses 1 on each hand. they will be unable to move without ruining whatever there wearing.
on a sliding door, lodge an chalk eraser, book, or paper stack inbetween the door, and the wall. when someone walks in, they will fet nailed by whater u put in.