SF Planet via Amazon offers the Vena RETAIN Ultra Slim Hybrid Case for Apple iPhone 6 Plus, Apple iPhone 6, Google Nexus 6, or Samsung Galaxy Note 4, in a variety of colors (iPhone 6 Plus case in Teal pictured), for $9.99. Coupon code "RETAINNY" cuts it to $4.99 with free shipping. That's the lowest total price we could find by at least $2 and a savings of up to $10. Each features a clear back panel and shock absorbing corner guards.