Who knows any good accesories for an iphone 5C? UK?

Hi, i'm getting an iphone 5C for christmas, so i was wondering if there's any cool or handy accessories for it?

There are some really cool chargers you can buy.
One of them I know is the Duracell Powermat.

http://www.iphoneinformer.com/8721-duracell-powermat-charger-coming-for-iphone-5/