I have directions for one, which I think is what you are looking for. I don't know who posted them, but it was from this site.
Cut a piece of paper 6 1/2 x 9 inches. scored at 6 1/2 inches. Then you are going to take a 6x6 page protector and cut off the part you would attach to a scrapbook (are you following me??) then I double stick tape that to the 6 1/2 x 9 piece of cardstock and fold over the flap. I punch holes on the score line and attach the ribbon. I also cut a piece of cardstock (6x6) to fit into the page protector (to hide the tape). stamp 4 mini note cards with scalloped edge (any more then four make it too bulky) Place inside. I add a velcro dot to the flap to hold close and then I stamp something to go on the square...but I have seen where they don't even put that square on it. What ever way you prefer. Then I usually stamp and stuff a RSVP pen to match it.
Edited to add: I found the one in the gallery I had asked for directions about.
Gallery at Splitcoaststampers
Credit and thanks then goes to
duscinowicz