15. The Screaming Doormat
Prank culture was huge in the 90s, and the pressure-sensitive screaming doormat was the king of Halloween pranks. Disguised under a standard welcome mat, this battery-operated device would let out a loud, cackling laugh or a dramatic shriek whenever a trick-or-treater stepped on it. Placing one of these at your front door adds an element of interactive, nostalgic fun that will have adults laughing and kids jumping in surprise.