After seeing the business cards with gears a few months back (normal
), I started thinking about what else could be made to fit in a business card. I wanted something unique and memorable that could represent me and my creativity. What I came up with was a business card that can convert into a rubber band powered desktop catapult. Here is a PDF of the Instructable that includes all the secondary images and annotations.
Here is a video that shows how it works.
Another video of assembly to help if you are having trouble working out some of the steps.
If you want to build one and don't care as much about the appearance you can try the quicker and easier method