Gwen Stefani shopped at a party supply store in LA for son Zuma's birthday, so it's fitting that she also had a little arm party of her own with this Cynthia Desser blue snakeskin cuff ($195). The singer completed her laid-back style with round tortoise sunglasses — get a similar pair by Kate Spade ($128) — and a Louis Vuitton crossbody bag. Score Gwen's exact blue cuff to spice up your t-shirt and jeans or wear it with a leather dress at night. Sport it solo, like Gwen did, or match it with your favorite bracelets for a major arm party. If it's too pricey for you, this Leighelena blue lizard cuff ($105) is equally standout.