Okay, to be honest, this isn't my design. This was the brain child of one of the Stampin' Up! concept artists (what a dream job, eh?). The only thing I did differently was add a Red Glimmer Paper mat, because....GLIMMER!
The "To: From:" was stamped on the back with Basic Black Archival Ink. Because the Glimmer Paper has a sort of plastic backing, it really helps to use the Heat Tool on the low setting to make sure it is thoroughly dry. It will stay smeary for a loooong time if you don't. And don't sit it down on an unfinished project before it's dry, either. (Ask me how I know.)