the allergens and problems from walnut are in the dust. Once dried and sealed it is safe. I use it for salad bowls often when I actually manage to find some walnut wood for turning.
Qweesdrawer, in regards to honey, there is a great article a few months ago on smithsonianmag.com about it. Some really interesting stuff. they used to use honey as an ointment on wounds in ancient/egyptian times. The enzymes the bees put in honey make it slightly acidic so nothing can grow in it, and as honey reacts with wounds it naturally releases small amounts of hydrogen peroxide, which also help with keeping wounds clear.