Back in the 80's I bought a few of these small canvas punching bags.
A few years ago I bought one from a vendor at a tournament in NJ.
Now I cant seem to find them any where.
http://www.youtube.com/watch?v=Rmgwzllbve4
in this link it shows what I am talking about.
To me it looks like they are in Hong Kong .I That is the small punching bag I am looking for.I checked out a few HK MA supply stores on the from their wb sites but did not find any thing.