Kids Waterproofs What Are Safe Durable Wood Finishes That Can Be Used On Kid's Toys?

What are safe durable wood finishes that can be used on kid's toys? - kids waterproofs

I try to make some wooden toys for children of preschool age, so I need something that is not toxic. I do not use oil or anything else that can cause stains, and I need something that is durable and waterproof ... While "a saliva test. Ideas?