I made this for my boyfriend for Christmas. <3
It's made from one solid piece of foam cut out and painted with a metal rod in the middle (the rod is because the handle and blade are actually only connected by one square.) Each square is 1 inch by 1 inch by 1 inch.
Took about 5ish hours not including drying time. Done over a couple of days. (Most colours needed 2-3 coats so become crisp and solid.)