I was at the craft store a while back and came across some floral wire. I bought some and have been using it to strengthen the wings on my models. it is really soft and easy to bend yet firm enough to help form a nice straight wing. It is formable even after the wings are built. The kind I use has a yarn like wrapping on it which makes it glueable. OOps I posted this in the wrong place. Aanayone know how to get rid of a thread once you have posted it?