I really like the S&W moonclips they offered for the 8-shot 627"s. They were made on a wire EDM machine, and had that neat little "slot" between each round.
Last week I ordered some parts from S&W, along with some more moonclips. At $7 apiece they're pricey, but I like how securely they hold each round, and don't require any special tools to load or unload.
What S&W sent me were TK customs style moonclips, even though the website clearly shows the now "old style" moonclips.
I returned them. I can get TK's for less that half S&W's asking price.
http://www.smith-wesson.com/webapp/wcs/stores/servlet/Product4_750001_750051_766007_-1_757842_757839_757837_ProductDisplayErrorView_N