Making a train out of the diaper box, it was just the right size for a four year old. The face is the lid off a take out container. The hat was $2.50 at the party store. I used two sheets of blue poster board and 1 sheet of red. Thank goodness it didn't rain like last year since I never got around to waterproofing it in any way. I tried to make this costume as lightweight as possible, but it was still a bit heavy by the end of the day.