I'm a beekeeper and am using raw beeswax on my walnut model. Great stuff! As a PSA, I'd encourage anyone to seek out local beeswax from your friendly local beekeeper if you plan to use it for anything consumable (lotions, cosmetics, soaps, etc.) Commercially availabled wax for candlemaking or other workshop/Industrial use mostly comes from China and is known to be contaminated with a wide range of drugs/pesticides used by unethical beekeepers there. Google "honey laundering" and you'll probably never buy commercial grade grocery store honey again. I like to say" If you don't know the beekeeper, how do you know it's really honey?"
I also want to mention another beekeeping related wood treatment I'm working on for my E-Nano. Some beekeepers dip their hive boxes in liquid paraffin wax to prevent some diseases in the hive as well as long term weather protection . One thing about a beehive is that it is Hot inside. Even in the winter, the ball of bees can still be 95' inside. A high melting point paraffin might very well be an excellent high temperature preservative for our unusual devices which put wood through some serious heat cycling,