I made these cute cute cell phone / iPhone cozies with a wonderful vintage fabric I bought the other day from Goodwill. The fabric is from an old jacket that looks like it might have been part of medical scrubs. The fabric is rather interesting blend of cotton and polyester and 1 % stainless steel! Lining is made of white recycled fabric, interfacing is new cotton flannel. Velcro fastening inside.
Available for sale at my Etsy store or through custom order as long as I have fabric left. I tried the cozy for my 3G iPhone and it fits well (without any extra shells, skins etc. at least).