NNOO

A piston door that is normally open, but closes when you step on the pressure plates.

a flying tnt rain carpet duplicator canon

Crash the game with TNT after suffocating by pistons. Or make pistons pull them around a portal shape.

a red stone machine that builds a red stone machine that builds a red stone machine that builds a red stone machine that builds a red stone machine that builds a red stone machine that builds a red stone machine that builds a red stone machine that builds a red stone machine that builds a red stone machine that builds a red stone machine that builds a red stone machine that builds

A flying machine that shoots a flying machine that shoots a flying machine that shoots a missile that explodes with tnt

A huge redstone lamp screen, that flashes "lol" that uses cakes for power.

An enormous beehive that shoots out bees lol 🐝