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.
Build a bench for your entryway out of old pallets Pallets can add a rustic charm to many projects and make a great, weathered basis for a bunch of different projects. You can use a pallet to build an entryway bench. Just don't forget to sand it!