Get up really early and sneak into your victims bathroom and fill their hair-dryer with baby powder. And when they turn it on, their head will be pure white just like an old person!
Take a rubber band and slip it over the lever on the spray handle so that when someone turns the sink on, it will spray him or her in the face. This is an easy way to pull a great prank!
Drop a candy bar in the pool. Make sure other people see it floating. Be the hero and get the bar out of the pool. Then grab it and take a big bite.
This is a great payback for those of us with teenage who can actually figure out how to use their phone. Change all the speed dials. Here are some ideas, change all the friends and family around. When they push the button there will be this uncomfortable pause of mental confusion. If they change all the numbers back. Change them again.
While your victim is showering, sneak in and take all their clothes, the towels and bath mat.
Unplug your mouse from the computer or unplug your phone from the jack.
Whether you pull any pranks or not I hope you have a fun April Fools Day!