I whipped up this little box this morning. I pulled apart a popper box and got the pattern - nice and easy. The only changes I made was to have the join at the side instead of down the back. I tried it that way first, but it made the box too flimsy.
I also shortened it slightly from 6 1/4" to 6", so I could get 2 from a sheet of cardstock.
I'm sure it's already been done copious times already, but I've never seen it before, and as I changed it - I'm calling it my original :)