- Text or call them from an unknown number and play a prank on them. For example, you could pretend to be a secret admirer or a telemarketer selling a ridiculous product.
- Put a whoopee cushion on their chair.
- Leave fake spiders or insects in their room.
- Change the settings on their phone or computer, such as changing the language or setting a ridiculous alarm.
- Swap out their shampoo or conditioner with something else, like shaving cream or dish soap.
- Put a sign on their door that says "Beware of the dog" even if there is no dog.
- Put a fake mouse or rat in their room.
- Cover their toilet seat with plastic wrap so that they get a surprise when they sit down.
- Put a fake note from their parents on their bed that says they have to do extra chores or are in trouble.
- Put a whoopie cushion in their seat at school.
- Put a fake spider or snake in their pencil case.
- Change their phone settings so that it autocorrects certain words to something funny.