If you take pictures with a DSLR camera, you should check out the Luma Loop camera strap. I saw someone using one this spring and immediately asked what it was, having never seen anything quite like it. The guy told me it was a Luma Loop, and he loved it – after taking a close-up look at his, I knew I needed my own.
Ed note 11/16/11: I just realized that Luma has stopped making the Luma Loop, because of an aggressive patent awarded to a competitor. This is a shame, as this is a great camera strap. See this statement about the patent on their website.