Here's what looks like an inexpensive case which arrived with the P10 kit I won on ebay. It's a tight fit over the P10 lens, but it's fine with the S10 unit and self closing cap which arrived yesterday. It's branded N.E. Made in China and is 44% leather, 18% P.U. and 20% 'pulp'
. It's actually quite well stitched, smells of leather, and has a sturdy steel tripod mount. Perversely, there is no strap, but I was thinking of rivetting a leather dog lead to it.
I've put the other shots in a zip file to avoid cluttering the page.
Edit to add: Here is what looks like the same thing - free worldwide shipping!http://www.ebay.co.uk/itm/Leather-hard-Camera-Case-for-RICOH-GXR-with-S10-lens-B-/330745270591