Just heard this is a slick way to do t-shirts... using flannel on the back side. Anyone tried this? Do I still have to use interfacing to stabilize the shirts? What's a good filling -- a thin polyester batt or just another layer of flannel? How much smaller would the batting need to be in each square if I used a poly batt? Seems to me this would be kind of soft and cozy. What do you think? I suppose you would still need to snip it every
1/2 inch but the t-shirt fabric wouldn't fray much. Hmmmm.Leanne in MN