Gunge, or slime, is a slippery fluid often used in practical jokes called sliming or gunging. Gunge is poured over the victim's head or they are dunked into a tank containing gunge. A gunge tank, similar to a dunking tank in which a victim is submerged in water, can be used at fundraisers and charitable events. Homemade gunge is made out of simple materials and can be any colour desired. A non-toxic version is best for children.
Mix 1 cup of water and 1 tbsp of borax in a glass bowl. Stir with a wooden spoon until the borax is completely dissolved.
Pour 1/4 cup of water and 1/4 cup of white glue into a second glass bowl and stir with a wooden spoon.
Pour 1/2 cup of the borax solution into the glue mixture. Add several drops of food colouring to the mixture. Substitute poster paint to make non-staining gunge.
Stir the mixture until it becomes stiff.
Put 1 cup of ready-made custard in a glass bowl.
Add two to three drops of food colouring and mix with a wooden spoon.
Add gummy worms, chocolate chips or mini marshmallows, if desired. This gunge is edible.
Store gunge in a zipper-type plastic bag in the refrigerator. Double or triple the ingredients to make larger quantities of gunge.