Sold in a wide variety of versions at various prices, these new metal Gilty Couture "Accoutrements" from the minds behind Core Cases are designed to bling out your iPod with precious metals and optional Swarovski crystals. The base version of each case is stoneless and sold in either silver or 14-Karat gold, while versions with clear or pink stones are sold at a premium. For the iPod shuffle, prices range from $55 to $75; the nano, from $85 to $130;…