Go over to Candlepowerforums and look through the listing of their sponsers, one of the sites there sell them (i just can't remember the name and its clocked here at the office)

BTW, those snap shackles are so cool that Tiffany & Co. just started offering one in Sterling silver...it's not on their web site, but it was in the most recent brochure they sent me.

That place on CPF is: Berkley Point

I keep meaning to place an order myeslf... <img src="/images/graemlins/smirk.gif" alt="" />

You want this one: http://www.berkeleypoint.com/products/hardware/microclip.html

The next bigger one (mini clip) is a bit easier to get on and off of the keyring but makes the whole combination that much bigger (1/4" longer or so, you really notice it). You might consider it if you're going to put it on and off of the keychain a lot. The easier operation might make up for the larger size.

The nano and pico are too tiny to clip easily onto a large splitring.