Water Colour Prank

This is a simple yet funny prank

Step 1: Materials

-a tap (the front must be able to screw off)
-gel or powder food colouring

Liquid food colouring wont work cus it will drip through

Step 2: Setting It Up

Turn the front end off , put the food colouring in and turn it back on

Step 3: Executing the Prank

Get a victim and let them turn the tap