Multi-functional and very cool iPhone case sold by Photojojo.
For the iPhone/iPad gamers, make you device much more comfortable for gaming with this accessory.
Want to take your iPhone in the sea, this case made by Dry Case should be exactly what you need. You can get it on Amazon.
Nostalgic geeks rejoice, there is an iPhone case for you: the Game Boy iPhone case.
Unfortunately sold out, but I thought this accessory that lets you mount your iPhone to your bike was worth a mention.
These accessories will always improve the value of your iPhone, but you can get even more value by using one of these active Apple Store coupon codes.