I noticed that t-shirt quilts called for iron-on interface to stabilize them. I want to make a memory quilt from my husband's shirts, but many of them are golf shirts, which would also need to be stabilized. I wanted the quilt to be soft, and I think interface would make it stiff. I was wondering if anyone has tried water soluble stabilizer? I only see it being used with embroidery. But wouldn't it stabilize a t-shirt (or golf shirt) and then could be washed away after the quilt is completed, leaving the quilt nice and soft? I haven't used either the interface or water soluble stabilizer myself. Any opinions?