Groupon offers the Aduro 3-Piece Camera Lens Kit for iPhone for $9.99 plus $3.99 for shipping. (Blinq via eBay charges the same.) That's tied with our mention from last month as the lowest total price we've seen. (It's a current low by a buck.) The set includes a fish-eye lens, wide-angle lens, micro lens, three lanyards, and three lens covers.