We used both Chocolate Chip and Close to Cocoa (retiring tomorrow, so sad - I wonder if I will miss it?) The stamp set is also retired but one that I will keep forever for my kids to stamp with!
I got the idea for the boxes from the Stampin' Success magazine - a magazine demonstrators receive monthly that is jam packed full of awesome business and creative ideas. Seriously It is worth being a demo, just for this magazine!
The Treasure box was made from the box 2 die and the big shot. I just cut off the top flap (well I actually never cut it out when I cut the bottom part of the box out with the die) I then just cut another strip of cardstock out and glued it to the inside of the back of the box and attached it with velcro to the front!