Anyone with hands on experience using 100% natural wood stains? Coffee, teas, berries, etc? A large project with many hours work could get ruined by guess work. My projects are mostly pine boards with a raw finish, just sanding. Over night I made a coffee solution (stuff I wouldn't drink) that I applied to a pine cross. It took the stain, but I wanted a little more contrast. Don't want store bought mixtures. My projects are for eco-green burials. Darker is more suitable. I have heard of walnut shell sun tea, have any of you tried it for staining? Thank you in advance!