Iphone case filled with loose crystals

I fell in love with these two iPhone cases because they were filled with loose crystals.

There were other designs as well.

Search ebay for more.

an example from ebay.

http://www.ebay.co.uk/itm/Fashion-6-Window-Swarovski-Element-Crystal-Back-Cover-Case-For-iPhone-5-Black-/190749919328?pt=AU_MobilePhoneAccessories&hash=item2c6994c860