The last time I ordered Do Sew, was a year ago and I got it from Annie's. I use it for appliqué, and the labels I make for quilts and I appliqué them on to the back of my quilts.
For making patterns, the closest I found is a product from Pellon:
http://www.overstock.com/Crafts-Sewi...150613180116:s
Perhaps you can use this, instead. Hope this helps.