Forge of Thautam (https://www.wizards.com/default.asp?x=dnd/ex/20040807a&page=6) lets you use Craft Magic Arms and Armor, if you're a dwarf. It's the only example that comes in mind of the top of my head. What kinds of resources can you afford to trade for feats? Only money?
Turn into a midgard dwarf from frostburn, (ex) craft arms and armor, craft wondrous items, and forge rings, with the ability to ignore prerequisites, requirements, and needed spells for those 3 item types.