Canvas from ebay?
 

I've been hanging out on ebay lately, and have run into rolls and rolls of canvas for sale, there. It is available in various widths, and in lengths of a few to several feet -- like 12 feet long, or more. AND, the prices seem quite cheap.

My question is, has anyone ever bought any of this stuff? Is it any good? If it is, it seems to me like this would be a good source for canvas. At those prices, you could cut it up and use it for studies.

There's no way to know what you're getting. Let the buyer beware.