We hit some of the antique stores this weekend (which is how I ended up with a FW table. *sigh* no will power at all), and typically, in the past we've seen them there too. There weren't any that I saw at all, other than the $3 a spool silk thread that's been there for at least a year that I know of.
The way I've been getting them is by putting a wanted ad in the local buy and sell. I just don't want to do e-bay these days. The shipping is extortion, the prices are terrible. I'm liking Bonanza though. The sellers are so much more reasonable, or at least the one I've been dealing with is.