I don't know if it's as high quality as what you want, but I just tried it and the sheath that comes with the ultrafire mini multi tool (DX sku 4696) fits it perfectly. It's a nice little tool and worth getting on its own. I actually got one taken away by airport security so I have an extra sheath if you want it, its yours.
For the record mine has been on my keychain for like 6 months and shows very little wear.