My daughter's class had a blast with their Gak the other day. It took a lot of coaxing and pleading for her to pull off a quarter size piece with which her brother could play. He never put his Gak down and wanted to sleep with it!
We're not talking Gak Snack's...Gak is a rubbery blob that can be rolled and pulled and mushed in your hands. There are a couple of different recipes but this one is from a fun site called Kaboose:
Get slimey this summer with Homemade Kids' Gooey-gak made from glue and borax (or liquid starch).
What you'll need:
1 cup all purpose glue
3/4 cup water
1 tablespoon tempera paint, your choice of color
How to make it:
Mix together with wire whisk the all purpose glue, water, and tempera paint. I used the powdered tempera, but the liquid works just as well -- just don't mix the powder too thin.
Mix separately 1/3 c. water and 1/2 tsp. borax. Slowly pour borax mix into glue mix.
Let stand a few minutes, then knead. Pour off any remaining liquid. Store in plastic bags.
Repeat for different colors.