You can decorate the inside of these little cards by using the same decorative paper as a border. As for closures, you can use velcro dots, thin magnets, or Zig 2 way glue. It can work like rubber cement. Adhere a small amount in the 2 areas that will touch. Let them air dry. ONLY THEN do you close the card. It creates a repositional sticky spot...sort of like a post it note. Not only is is a lot expensive than paper thin magnets, but you also don't get the bulk that comes with the velcro dots. See, I bet you learned something new today!
DRS Designs stamp: 899FU