In The Hobbit films, we definitely get the impression that Bombur likes his food. He is a very determined eater, and he’s the most portly of the dwarf’s adventuring company. Therefore, if you’re going to woodburn the character into anything, a spoon is pretty much perfect.
This design by Julia Salveny features an intricate portrait of the character on one side accompanied by the phrase “When I eat, I am deaf and dumb.” It appears in Dwarf Runes on the other side. Rather than using it as a utensil, I think I’d keep this for display purposes only.