Here is the petg test of Twilight Zone for WMS. A previous one on another plastic material was looked at. It wasn't the type they normally used, so now this one which is glossy on the back. I have been working on this with Illinois Pin Ball, earlier this year. Hopefully we are close to having the printing process excepted for translites.
http://s36.photobucket.com/albums/e28/greatwichjohn/Twilight%20Zone%20PETG/
