This is not my idea I saw this made by another Stampin Up demonstrator and knew I could make a cutting file using ScanNCut Canvas, I also created the flap by welding shapes together. (watch out for video in a few weeks about creating shapes from other shapes.)
Anyway Here is my box. I made it all using Stampin Up products, which are lovely and nice quality.
Ive made a video on how to put it together but to be honest its quite easy. Its on my Youtube channel Here
The cutting file is available on My Cutting File Page (link at top of page)
Hope you like it.