I think homemade play dough is a great favor idea. It's cheap to make and you can pick your own colors.
I found this gorgeous and simple tutorial on adelynSTONE and thought it would be perfect to share. Kristan, the woman behind adelynSTONE, says the secret to her recipe is cream of tarter and not a lot of salt.
Plus, I love how she packaged it in little plastic baby food containers. Great idea!
My husband and daughter made some yesterday to try it out. It was simple to make, and had a super smooth texture, better than any other homemade play dough we've tried. As you can see, my daughter loved it.
Here's the full homemade play dough recipe. It's definitely worth a try, great for a rainy day activity or for some fun cheap party favors.