These iCovett iPhone 5/5S Interchangeable Cases, normally $18.99, are now $5.99 each at Tanga. Plus, they ship for free. This is the best deal we could find by at least $2, with most merchants charging over $12 for them. They come in a multitude of designs, and each order includes 12 different plates that can be changed as often as you like. Choose from themes like Holidays, Beach Designs (pictured), Animal Prints, and more. There are 10 different themes in total. There is no sales tax (except AZ).