Hi, Greg. Check the catalog stores and sites. These include www.rockler.com, www.woodcraft.com and Woodworker's Supply (800-645-9292). They all have paints and stains in their catalogs that are kid friendly. Since colors, types of paint, etc. become issues, I will not try to pick one for you. They have some non-toxic clear finishes also. Salad bowl finish is great.
Be aware that most "non-toxic" finishes are toxic until they have dried completely.