Posts: 10
Threads: 1
Joined: Jul 2010
Try a hobby or craft shop. (The kind that sells stuff to make flower arrangements, clocks, painted shirts, etc. by hand.) We have Michael's Craft shop or Hobby Lobby where I live. I have seen thin rubber sheets with adhesive backing there and filed it away for later use. It looked like it would work well, but it was a year or so ago when I saw it.
Another option would be a home improvement or hardware store. They sell a large assortment of small rubber pads to place under appliances and furniture.
No great answer I'm afraid, but maybe a few leads.