Here is a Google search I did for it. I bought mine from Gruber's Quilt shop in St Cloud, MN. (I had to search their site to find the name! lol)
It's called Heat Press Batting Together
(pretty original name, isn't it? :lol: )
http://www.google.com/#hl=en&source=...2cd8eab02d18af
Link from Gruber's:
http://www.grubersquiltshop.com/quilting_aids.htm