There are really two ways to make an instant gel gag work. In the first option, you can simply leave a beverage on your kitchen counter or table for several weeks (or even months), watching as milk or juice transforms itself into a disgusting sludge that is no longer anything you'd want to put in your body. In the second option, you can cut the weeks-long waiting period and ruin a drink within mere seconds through the use of this instant gel mix.

This instant gel gag comes in a harmless-looking container – but it is really anything but. When someone's back is turned, you simply pour it in their beverage and watch as the liquid starts to gel before your very eyes. By the time the drink is lifted up and ready to pour down some poor sap's gullet, it's turned into a completely inedible sludge.
As far as pranks go, the instant gel gag is easy to use and fun to watch unfold. Avoid the mold-growing stages of liquid solidification and go right for the shortcut. Trust us, it's funnier!