I myself have never actually used fusible webbing (ok, my new sewing machine is still in the box - a year later!), but these are so cute I may just have to give this a try. Plus, if I can think of flat gifts, tehy would be adorable as gift wrap.:
http://www.designspongeonline.com/2009/07/diy-wednesdays-fabric-envelopes.html-Deb