You're supposed to be able to buy them at stashquilting.com, but clicking on the link took me to a yahoo search results page, so I think the domain is no longer active.
I remember seeing those pillow thingies a few years ago and they seemed like a cool way to frame an heirloom block. If you're not a sewer/quilter and want to preserve some of Grandma's blocks, this would be a good way to go.
A quilter would miss out on the best part of quilting though - using blocks in projects. :)