If you want to personalize your clubs beyond aftermarket shafts, grips, and tweaked lie angles, you can do so with the new limited-edition Sterling-England Sovereign Iron Series (sterling-england.com). The irons, which are forged from high-grade carbon steel, feature cavity backs that can be customized with a precision-milled design, such as your family crest or the logo of your company or favorite sports team. The cavity backs are available in silver chrome, smoke black, or silver with 24-karat gold leaf. The Sovereign irons can be custom fitted at numerous club-fitting centers around the country. Prices for a set start at $2,250, which does not include the cost of a customized cavity-back design.