A native of New Zealand and engineer Daniel Gray went to Edmonton, Canada to spend time with his girlfriend and her parents for five weeks. Whether for fun, or to test the ability of the future in-law, mother-in-law asked him to build a Igloo. And, as a building material were selected from the packaging of milk that a resourceful mother started collecting a few months earlier.
1. By bringing hundreds of boxes, they filled each of them with water and food coloring, for creating rainbow blocks.