take an old toothpaste tube.....
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Step 1: TAKE AN OLD TOOTHPASTE TUBE - PREFERABLY COLGATE
INSIDE THIS OLD TOOTHPASTE BLOW , SO THAT IT WOULD STAY STIFF
Step 2: Prank Step 2
pour two by fourth with water inside the tube and close it. now keep it where normally it is taken from.....
when somebody opens it and presses it, water splashes out onto the face.
how is it? easy and simple right?