All4Cellular offers the Ventev VersaDUO Interchangeable Shell for iPhone 4 and 4S for $1.95. Coupon code “A4C2012” drops it to $1.72. With $2 for shipping, that’s a slight drop from last week’s mention and the lowest total price we could find by $1. It includes three interchangeable color plates in red, blue, and silver.

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