While Conni did this with many photos (figure A). . . pictures of children . . . of friend's houses, etc., the ones that really were quite wonderful and different were the ones that she made from photographs of the stained glass windows in her church (figure B). Printing them on the clear transparency film made them look like what they were . . . stained glass. These Conni sold for the church at their annual bazaar. How wonderfully appropriate.
Though I do not know what weight the transparency film is, they must be close to the required .005 to it because they work perfectly. They can be rolled up to insert in the ornament but spring back to their original flatness when released. This is essential for success. I purchased and tried two different brands at an office supply store. They both worked.
Conni scanned her pictures into her computer and then printed them onto the transparency film. However, if you do not have a scanner, or do not own a computer, you can still make these ornaments by taking your photo and acetate sheets to a color copy center. Tell them what size you want the photos printed.
If you have not tried this technique before the basic steps are as follows: