- Making Basic Flubber
Mix 3/4 cup of the water with 1 cup glue in a bowl. Stir this mixture until it is thoroughly mixed together. Set it aside.
Mix 2 tablespoons of Borax with a 1/2 cup of water in a separate bowl. Mix thoroughly until all of the Borax is dissolved.
Combine the two mixtures. Stir them together. Add several drops of food coloring until the mixture is the color you want it to be.
Put the mixture in a plastic bag with a good seal. Close the bag, making sure it is tightly closed. Knead the mixture for a few minutes and your flubber will be done. You can store the flubber in the bag you mix it in.
- Making Gak (Borax-free Flubber)
Pour 1 cup of white glue into a bowl. Add several drops of food coloring until it is the desired color.
Pour 1 cup of liquid starch into the glue mixture. Stir thoroughly. When the glue and liquid starch start to mix, they should become very thick.
Mix more starch in if it seems too sticky. The starch is what makes the glue stretchy rather than sticky. Be aware that Gak will stick to clothes and carpets, but it comes out very easily with a little warm water and some scrubbing.
Store Gak in a container with a good lid.
- Making Edible Flubber
Pour one can (14 oz.) of sweetened condensed milk into a saucepan. Turn the stove on to a low heat.
Add one tablespoon of cornstarch to the saucepan. Stir the mixture over a low heat.
Remove the saucepan from the heat when the mixture starts to thicken. Add drops of food coloring until the edible flubber is the color you want it to be. Stir the mixture.
Allow the mixture to cool before you play (or eat) it. Be aware that edible flubber can stain light colored clothing and carpets. It should come out with warm water and detergent.
Store edible flubber in a container or seal-able plastic bag.