A DealNews exclusive! Yugster offers the Lifebox Glow Hybrid Case for iPhone 6 in 10 colors (Caribbean pictured) for $5.97. Coupon code "2DEALNEWS" drops it to $3.97. With $3 for shipping, that's the lowest total price we could find by a buck. The case glows in the dark, and the edges flash when you receive a call.
Note: The countdown timer on the product page does not reflect an actual expiration time and resets daily.