Over the holidays New Zealand native Daniel Gray traveled from his current residence in Canada to his family home where he had five weeks to kill with his family. Naturally, his mind began to wonder. After collecting a few hundred milk cartons, they filled each one with water and some food coloring and created ice-colored bricks. The seemingly simple project to make an igloo out of frozen milk cartons ended up taking over 150 hours and 500 ice bricks to complete. But the result is something spectacular.