I'd been looking for something to do with my birthday cards rather than throw them away. I like to think people have spent a little bit of time thinking about what I would like to receive so I don't like to just throw them away. This year I found a really simple tutorial for making a card into a little box. You can find the tutorial here.
Wouldn't these be perfect for little gifts or storing trinkets. DD is
currently using one as a little boat for Peppa Pig to sail around the
living room while evading attacks from bath duckies.