Added this line to the OP:
I ship these in a cardboard tube as a USPS First Class package. Satisfaction guaranteed.
What this means is that if you get the tube and the laminated sheet, and there is something wrong with it, send me a PM with a photo of what is wrong and we'll figure something out! Though, I'm hoping that shipping these in a tube and not in an envelope avoids most mailing issues (folds, dents, and the like).