looks like walmarts sells it too,according to thier website, they have it in store or on line. $12.99 for the small can.
http://www.walmart.com/ip/J.T.-Tradi...44445365192990
So it is expensive, but so worth it, if you don't have an area on the floor, or a place to go to pin a quilt, or if you have a bad back. i was just in a rush, and remembered the video and just did it. first time for me. and it was so easy and quick, and the top was repositionable until i got it right..