Next on my Pinterest mission was to make a travel LEGO box for my little man's birthday. I got the idea from HERE.
I used a diaper wipe container. It had an oval "pop out" area in the center, so it wasn't flat, but I cut that out with an exacto knife and then put the green plates on both the inside and the outside with hot glue. The plates cut easily with a sharp pair of scissors.
He loves it! His big brother is asking for one now. :)