Uniden Voyager floating case?

I have a Uniden Voyager radio. It's really great. I have been using the floating case from West Marine, but their smallest size is still too big. I need to stuff foam into the bottom in order for the radio to fit. Does anybody know of a floating case or bag that fits this radio? I emailed Uniden a few weeks ago and didn't get a reply.

....or forget the floating case and simply clip in on your PFD