One of my previous projects involved the use of 1152 squares of paper to build a Level 2 Variant 12 Menger Sponge. In this case, there were 4 colours of brightly coloured post-it notes. It is currently 100% complete.
Original Images, click to view correct size: 144 units make up 1/8 of the structure
Original Images, click to view correct size: 288 units make up 1/4 of the structure
Original Images, click to view correct size: 432 units make up 3/8 of the structure
Original Images, click to view correct size: 576 units make up 1/2 of the structure
Original Images, click to view correct size: 720 units make up 5/8 of the structure
Original Images, click to view correct size: 864 units make up 3/4 of the structure
Original Images, click to view correct size: 1008 units make up 7/8 of the structure
Original Images, click to view correct size: 1152 units make up 1 of the structure
No more images of this structure will be added, because it is finished!