I know little about working with wood, let alone finishing it, but I was hoping that someone might be able to help me out. I would love a finish that is ok for babies' mouths, protective to the wood (as I am sure it will get wet), and vegan if I possible.
Tung oil is often used to finish children's toys, and is from the seed of the nut of tung trees. Other nut oils, such as walnut, can also be used for finishing wood. Food sensitivities or allergies will be a consideration of course.