What (small) keychain ring do you use to attach flashlight to keychain?

[geepondy]

The quick release one that comes with the Photon Freedom is nice but it's too big. I'm looking for something preferably quick release but small to attach my USB flash drive to my keychain. Where do you search and buy such a thing?

 

[Lumenz]

I use the 20mm Nano clips on my keychain. They are the perfect size for me.