Yea, it wasn't a great photo but basically what you do is cut 2 horizontal slits in the card, then in the middle of that slit, you cut a vertical slit. What it will leave you with is something that would look like french doors. Probably didn't make a bit of sense so i'll try to do a better picture and repost.
Originally Posted by IzzyBoo
( I can't see the image very well. But it sounds like a good idea.