How to print on plastic?

My son got his school pictures recently. Included was a sheet of plastic that had his picture on 3 bookmarks, 2 key chains and 2 wallet cards. My question is how did they do this? I would like to make them myself. I think they used some form of Dye Sublimation...

The printing surface isn't flat. I am looking for a method that is inexpensive to print production and expiry dates onto plastic containers..

I'm looking to print a simple 1 color logo onto a plastic case. The case is flat where the logo will go but it would not be able to be inserted into a printer as it is too thick and has other parts connected to it. What is the best way to get a logo...

I want to print colour diagram on thermal plastic sheet, but the ink wont dry.

I was wondering if I could use iron on t-shirt transfer papers to put my logo on clear plastic poly mailers. If not then how would I put the logo on?

You know when a photo gets stuck to that little display window in your wallet, and there's an imprint of the photo on the plastic layer? How do you get rid of that? Thanks.

I want to print directly onto a vacuum sealing bag if possible. Thanks, Rob Fricke

If you store papers (or printed documents) in plastic sleeves of display folders, will the plastic cause the print on paper to fade Or does it only occur when you place papers in contact with the thicker clear plastic used in some wallets, where some...

I need to find a print company in the Midlands that can print a logo onto plastic bottles. I believe the printing company would need a rotary printer or a pad printer to do this. Can anyone help?