I bought this a while ago, but I pulled it out today, during science and it so caught the boy's attention.
Grinch Slime, all you need is:
1 Bottle of Elmer's Green Glitter Glue (I got mine at Michael's)
1 & 1/2 cups of very warm water
Combine those ingredients in a bowl
Then in another bowl, combine
3/4 teaspoons of borax
1 and 1/3 cups very warm water
Mix the borax into the water and dissolve. Once the ingredients of both bowls are mixed combine both bowls. Mix the ingredients with your hands
Drain the excess water, and you have slime!