Today when I was in the post office (in Mexico) I saw a sheet of stamps that had pictures of trains. I am not a big train buff, but I do love clever pictures. Especially stamps. As you can see from the photo, some of the trains span several stamps.
The stamps are only valued at 50 Mexican centavos each. Which equals out to 25 pesos. Currently that is about $2.45 US. I only bought one sheet. The sheet is numbered on the back like it is a limited edition.
Click on the image below to get a larger version of the picture. You can also download a high resolution scan, 16.5 MB.