Have you looked at anything from Nite Ize? It's not a case for your headset per se, but many of their cell phone cases have what they call the "Tooth Ferry" which is designed to carry Bluetooth headsets when not in use.Have a look at www.mypockits.com and see if there's anything of interest there. Bob is a great guy to deal with, and probably your best bet to get anything from Nite Ize.Def
I use the same headset.That's all I have to offer.