Architectural salvage always makes trash-picking or dump-diving sound so hip, doesn't it? It's a great way to spend a Saturday, and Dallas has a few very good places to scrounge when you're in the mood for a trash-to-treasure moment. The caveat, though, is that for something essential--claw feet for a cast iron tub come to mind--where weight-bearing and fit must be precise, you might be better off looking for reproductions of antique hardware or fixtures. Bring your measurements and any portable piece of your project to Elliott's Hardware, Dallas' reliable old standby of an independent hardware store. Near the center of the store is a specialty department with bathroom fixtures--including tubs with claw feet, faucet and drain hardware--and several hundred samples of drawer pulls, doorknobs, handles, towel bars and the gamut of stuff from roughly the end of the 19th century through the 1960s. Knowledgeable people staff the area, as if to remind you that Elliott's other major specialty is service. They'll look at samples with you and pull out catalogs until the sun goes down. If they don't have your first choice for style or exactly what you need, they know where to get it for you or where to send you to get it for yourself.