1. Give someone a frozen home screen (when they tap the apps, nothing will happen).
2. Block a mouse sensor with a piece of paper and some tape.
3. While you're at it, Cage-ify someone's entire internet with an extension that swaps out every image for a pic of Nic.
Download the Chrome extension here.
4. "Why isn't my body wash coming out?" Plastic wrap, that's why.
5. Turn someone's iPhone apps to cats.
6. Hide a toy snake around the house (or the grocery store).
7. Use autocorrect for evil.
8. Rearrange someone's drawers to seriously confuse them when they're half awake on April Fools' Day morning.
9. Borrow your friend's phone, change your contact name to "Mom," and start sending hilarious un-mom-like messages.
Learn more here.