I needed a new label for a PortaColor I am restoring, so I scanned the one on my other set and created a reproduction. I found some silver-metallic paper at an art store that closely matched the original and then printed on it using a laser printer. In case anyone else is interested in making one, I uploaded my file to the link below.
http://home.comcast.net/~medasaro/PortacolorLabel.png (Warning: It is a big file!)
Here are a couple of pictures!


-Matthew