The card is made out of vellum (just regular old vellum) and stamped on the front with Whisper White, So Saffron, and Always Artichoke craft ink. I then let the cards lay for three days and didn't bother heat setting. I just let them dry naturally. I think the stamp is by Penny Black...not sure on that though.
I then made up the wording in Microsoft Word and printed it on Whisper White cardstock and cut them out and just laid them in the vellum card. I used my Crop A Dial to punch two holes in the folded side, through the vellum and cardstock and threaded the Saffron ribbon through it.
I wanted simple and clean. I think I might have acheived it with this invitation. Sorry about the picture quality!