I would like to get some photos printed on clear plastic. I am picturing the equivalent of white photo paper, only clear, but I'm open to acetate like a transparency for an overhead projector, or a rigid plastic sheet or anything else that's clear.
In the past I've ordered photo prints from a variety of sources online from local camera chains to smugmug.com to retail chains. I am not seeing the ability to print on clear plastic on any of them.
This question isn't about printing on clear plastic myself. I've read about that, and I may end up pursuing that, but that's not what this question is about.
How can I order photos printed on clear plastic?
Thanks in advance!