Squirting Blood Effect

Oops - this dude must have tried to pop a zit a little too hard.

This instructable will show you how to make a Swiffer WetJet mop into a sweet squirting blood effect. Also included is a cheap way to make fake blood. Add on the optional circuitry, and you can get a pretty decent heartbeat effect to boot.

Link: Make your own blood squirting effect