Last week I made playdough for my son. I used the recipe from the book The Toddlers Busy Book: 365 Creative Games and Activities to Keep Your 1 1/2- to 3-Year-Old Busy by Trish Kuffner, which by the way is a great book. My son first ate some then played with it a little. Thankfully it is made of edible ingredients. You can also store this in the refrigerator. I kept mine in for about three days and it was still great. Here is the easy recipe.
Homemade Oatmeal Playdough
1 part flour
1 part water
2 parts oatmeal
Mix well. That's it! Very simple.
I used half a cup of flour, half a cup of water, and one cup of oatmeal. I wanted to see what it was like before making a big batch. It turned out nice and was quick and easy to make. You could probably use food coloring if you want to add color to it. I might do that next time.