All natural (mostly) wood stains! A handful of pennies in vinegar will produce a beautiful pale Caribbean blue stain. A wad of steel wool will give you a rich reddish hue. A combination of tea and a metal object in vinegar will produce a black stain.
Avoid using the word 'very' because it's lazy. A man is not very tired, he is exhausted. Don't use the word very sad, use morose. Language was invented for one reason, boys-to woo women-and, in that endeavor laziness will not do.