As you will have seen if you have checked out the video, and the picture above, you can custom make loads of different sized envelopes in any paper or card that you choose. I had a quick go at making some small ATC, and gift card envelopes, and they were so cute, but alas I did not take a picture! I do have this spotty one made for a 5.5"x4" card (by the way you do get a sheet to change the table to metric).
Not only can you make envelopes you can also make Boxes that you can store between 4 and 6 cards and envelops that you can use as gifts. This one was made from a tutorial from Kelly Gettelfinger. Purchase your board and get making them for Christmas presents, they are such fun, and you can put a variety of cards in the box, the flatter the card the more you will fit in.
A nice band around the box that slips off is a great way to seal the box so that you do not have to buy magnets or velcro.
Items used for just the box are:-
The Envelope Punch Board.
Card stock - Tangerine Tango.
Epic Day This and That Papers.
Bitty Butterfly Punch.
Rhinestone Basic Jewels