Here's a thought for you: why not just use a wood that's closer to the final color you want? Walnut gives a lovely chocolate brown, maple is a nice blonde color (and sometimes you can find pieces with attractive grain patters, like tiger, fiddleback, and birdseye), and cherry darkens in time to a really nice warm reddish-brown. Sand or scrape the wood smooth, give it a clear finish, and be done. Another option is to do a "fire finish", which is to take a piece of wood (preferably one with a distinct pattern of growth rings, like oak or yellow pine), lightly char the outside over an open flame (got any open flames handy? ), and then brush off the charred surface with a stiff brush or a wire brush. With a little care, you get a terrific grain pattern and a nice color, and it's quite appropriate for forged work. Your bits of antique wood could do well.