Hey, does anyone know a source for the type of rubber stop used on this piece:


The people whose house I saw this at got it as a wedding present, and don't remember who gave it to them, otherwise I'd just try to track down the blower who originally made it.

I've been making them with 10 mil posts and putting them through #2 white gum stoppers (like this: ),
but I think that they big glob of white looks obtrusive and kind of ugly, hence the search for these little black beauties (a bulk supplier is preferred, but even if you just know a place that sells them individually, it would be a good start).


Any help is appreciated
Thanks,
Icarus