All natural stain!
Very cool, I'm so excited to try this! I'm always looking for old wood and other things to repurpose. I saw this recipe on the Allen Smith show. It's all natural, so while you'll still need to do this in a ventilated area, it's way more cost effective and better for the environment too!
Take a quart jar, add 1/2 cup coffee grounds. Get a steel wool scrubber (without soap, but if it does have soap rinse it all out really good). Cut the steel wool into pieces and drop it in the jar. Next, fill up the jar with regular white distilled vinegar. VOILA! Stain! Just rub it onto your wood project with the little wool pieces.The steel wool and vinegar have some kind of chemical reaction to each other that turns this really cool kind of rustic greenish grayish brownish stain.
If you decide to try it please share your pics, would love to see what you did with it :)