I made one that is tough, highly functional and too absurdly geeky to wear in public. I used the car gps mount and about 8 inches of really big PVC pipe.

I wanted a way to carry the 810 where it was always visible and the gps antenna was pointed skyward most of the time. My left arm seemed a logical place and my unused car mount gave me the inspiration.

I've been using it for about 3 months now and it works great.

But I wouldn't want to wear it dancing.