But of course ; )
The technical name for the things is "zipper coil sliders" and they are apparently brand-specific. So there are some YKK bulk packages of sliders, but none for Coats and Clark that I have found, hence my question, as if anyone in the world would know, it's likely to be someone who sews and hangs out here.
But even if I end up wasting half the zipper, the bags are darn cute and practically free, given that I use scraps on hand, so not really such a big deal.