DIY Slinky business card holder/display - great for indie craft shows or your office desk

I've had a Slinky (the classic toy that's fun for a girl and a boy) sitting on my kitchen counter for...well, longer than I'd like to admit.  It dawned on me the other day that it would be a great way to hold/display business cards for a desk or table.   It actually holds a lot of cards and looks great. 

Fun for adults, too!