Some students recently called this "crystal slime." This will make 16 2 ounce (60 ml) batches of slime, or one ginormous blob of slime. This is the same as our green slime, only it is colorless! If you want, you can choose your color by adding your own food coloring. Make some different colored batches and see what happens when they mix, or keep it clear for "crystal slime." For ages 6 and up with adult supervision.