A good prank to play on our sisters??

Question

Okay, me and my friend are having a sleepover in a couple of days, and we love pranking our sisters. We live across the street from each other, so we can go from one house to the other. They'll be together too. We have my neighbor, and he'd be willing to help. So...any good ideas? We like scaring them, which we did last night and it was HILARIOUS. We had them convinced there was a stalker outside. Anyways, Suggestions please?

Answer 1

1>go to you tube type in follow the dot have them watch it

2>when there asleep put on some very loud metal/rock wake them up

3>if you have a bunch of worms (real ones)  get there favorite cereal take the bag out and replace with bag of worms!

  

Answer 2

Ok get a jason mask and a before that tell them that they was a guy that died in your neighborhood and he look liked jason and get someone to wear the masked and go after them.