This stuff is so fast and easy, this is the only picture I took of the process. Seriously, it's a five minute activity. The How-To is at the end of the post.
1 teaspoon borax
1 cup water
4oz(1/2cup) glue(clear for slime, white for gak)
1/2 cup water
Dissolve borax into 1 cup water, and in a separate bowl, mix glue, 1/2 c water, & food coloring. Pour Borax water into glue mix; it will turn to a solid almost instantly. You can stir for a few moments then you have to use your hands to gather it all together; have the storage container ready and toss excess water. Knead until it firms up and feels dry. Keeps indefinitely in an airtight container.