I have been seeing these pop-up box cards all over online for the over a year now. I always wanted to try to make but but I always forgot to get the directions before I wanted to play with my paper items so it took me over a year to actually, remember to find a how to.
I ended up making one for my mom's nirthday and found that I loved the outcome even more so I made another one as a giftcard holder birthday card for my shop.
Stampin' Place. I found that their prices were great and their selections.