Smartphone Accessories: Cool, Uncool or Plain Weird?

"The smartphone is the latest status symbol in the world of all-purpose gadgetry. But the craze is producing more than just day-long waits to purchase the latest and greatest iPhone. An entire market of smartphone accessories is emerging. That's right - trends now dictate that you accessorize your electronic accessories."

Blackberry earrings? Bluetooth bracelet? iPhone cufflinks? How far is too far with accessorizing your phone and advertising your mobile phone love? Some additional items are useful and can enhance your mobile phone experience. But other items are just plain odd or unnecessary. But I'm not discouraging you from buying that Hello Kitty Case (actually, I'm surprised I don't have one yet). What unusual, odd or weird accessories have you seen? Or what cool accessories have you bought?