Maybe you won't consider this a cinderella but just a label, nevertheless, there is a tabletop display now at your local USPS that is promoting themselves as an "Official Shipper for the Holidays" and they are giving away these labels. I picked one up just today.

I don't suppose they'll last very long, but just another piece of postal history we collectors can get. And we're always looking for freebies! Right!?

)