While we were in Flin Flon I bought a book about making boxes and this is the second one. The first one wasn't very good because I didn't have the right heavy interfacing. The interfacing I bought today is great because it is iron-on on both sides. That eliminates the need for wonder-under. I know a few more things now and the next one will be better. Mary Anne from Magpie's Mumblings might recognize the fabric.