I've resized my original version for Euro sized business cards. Hand your cards out with a vengeance! Both parts print in less than 1 hour, and then all you'll need is 1 small rubber band.

Both parts print without added supports, but the base part has a small built-in break-away support on the rubber band hook, and the arm part has two small break-away supports underneath the horizontal arm that goes over the card. After removing these supports, clean up any lumps or nits in the card slot and around the pivot point for the arm. Assemble the arm over the post and make sure it pivots freely. Loop a small rubber band between the hook on the arm and the hook on the base and you are ready to go.