Um.

From Outblush:
Banana Bunker
Get your mind out of the gutter, girl! ( Riiiiiiiiiiiiiiiight )
This little gadget stays out of the bedroom and is rated E for "Everyone needs one." The flexible, plastic Banana Bunker ($10 for 2) is designed to prevent fragile bananas from bruising and blackening in transit. So simple, we don't know why they didn't think of it sooner.

Buy at MoMaStore.org