How can I protect wooden children's toys with colored oils?

Most oils are suitable for toys, but few manufacturers offer colored oils specifically for this use. Osmo has developed the Wood Wax Finish product, based on hardwax-oil, which is approved for toys and food surfaces. These oils offer bright colors such as yellow, red, blue, green, and black. For a more intense and opaque color, it is possible to apply two coats of the product.