The ones I have are called "Skillbuilder Panels" by RGA designs. They have 3 different ones plus a companion book.
http://www.rgadesignquilts.com/store...page=page&id=2
They are advertised ad being permenent ink and not to become a finished project. However they quote a suggestion from a reader to"quilting it first with a wash-a-way thread. Then add another fabric over top of the Skillbuilder and quilt it again from the back using the wash-a-way stitching line as the guide. The first stitching would wash away and the Skillbuilder would be on the inside". Sounds like an option. You could also bind the edge and use it over and over for practice if you used wash-away thread!