I made a card using Jackie's Never Ending Card Tutorial for a friend's upcoming wedding. Jackie is SOOOOO talented!! I was trying to figure out how to make an envelope for a 6"x6" card, and I came up with a way, using an existing envelope, so I suppose it is an "altered envelope" rather than a new one, but it works and here's how I did it.
OH, by the way, the card was for a friend who is getting married. I made her a guest book, that post will be following soon.