Groupon offers the Aduro 3-Piece Camera Lens Kit for iPhone for $11.99 plus $3.99 for shipping. That's tied with our mention from a month ago and the lowest total price we could find for a new kit by $27 (outside the price below). The set includes a fish-eye lens, wide-angle lens, micro lens, three lanyards, and three lens covers.

A close price: Blinq offers it for $16.99 with free shipping.