do you know where to get it or do you guys printed your selves? how does that work?

I think it's rice paper. I think you can get it at some of the bigger cake decorating supply stores. The main trouble is the printer...because the ink has to be edible too. I don't know anything about that. Hopefully someone else will get on here and help out!

You're looking for wafer paper. If you run it thru a printer, then you need a printer with edible ink that is dedicated to just that use. You can also draw on it with food doodlers or non-toxic markers, or paint on it with edible paint. Many, many online stores carry it.

Wafer paper and rice paper are one and the same.
There is also frosting sheets that can be run thru a printer as leahs said.

You will find compatible printers info, edible ink cartridges, icing sheets and everything you need to know at http://kopykake.com/