I'd not considered using a vinyl cutter. It opens up the possibility of custom fonts too, as someone suggested. The transfer film should make it easy to apply.
My original thought was printing spreadsheet cells on plain paper but your comments made me think about using mailing labels to save the "apply adhesive" step the process. Since I have all the materials on hand I think I'll give that a try first.
Thanks for taking the time to share your ideas. That's why I enjoy the Railwire so much.
Steve