I am planning to build a solid body eub out of white oak and use henna to make some traditional Indian patterns out of it (like in the picture). My problem is, that I really love the feel of the raw wood for both the back of the neck and for the fingerboard, but I don't want to ruin the pattern or the wood with finger oils and stuff. I hate the sticky feeling that gloss finishes leave. Any advice is helpful! Thanks in advance!