That's big. Box camera's only use a 2x2. My first thought was a silk screening shop, but I'm pretty out of date on stuff like that, There's probably a more modern process. The would make cool shirts though.Glad you liked them, I'm still considering options. I need to find a company that can do really high resolution/high quality scans of transparencies that are as large as these are, 8.5 x 11.