Originally Posted by JoAnnGC
I use foam core poster board from Hobby Lobby or the local dollar store. I make a fabric sleeve to fit snugly over it and then hot glue or slip stitch the open end closed. This is inexpensive and can be cut easily with an exacto or razor knife.
I use the foam core also. I am lazy though, when I make my sleeve to put foam core in I just make it longer and tuck the end into the sleeve. I haven't had a problem with that method. It just saves a little time when finishing. It can easily be removed to launder the bag.