1. The Whoopee Cushion: This classic prank involves placing a whoopee cushion on a chair or seat where the unsuspecting boy is about to sit. The unexpected sound of the cushion can make for a hilarious moment.
2. Fake Spider or Bug: Get a fake spider or bug, and place it in a drawer, pocket, or any place the boy frequently reaches for something. The surprise and reaction can be entertaining.
3. Remote Control Prank: If the boy has a TV or sound system with a remote control, hide it and use a universal remote or your phone to control the device from a different location. This can confuse and amuse him.
4. Toothpaste Oreo: Replace the white cream inside an Oreo cookie with toothpaste. Offer it to the boy and watch his reaction when he bites into it.
5. The Pen Cap Switch: Take a pen and switch its cap with another pen of a different color. When he tries to put the cap back on, it won't fit, creating a moment of confusion.
6. Jelly in the Shoe: Sneak a small amount of jelly or pudding into one of his shoes. When he puts his foot in, it will feel squishy, and the surprise can be funny.
7. Invisible Ink Message: Write a funny message on his hand or arm using invisible ink. It will only reveal itself when exposed to heat, such as when he washes his hands.
Remember to keep these pranks friendly and harmless, and try to prank in good humor to avoid anyone feeling genuinely upset.