i doubt you could actualy make one, and if you did it would look like crap. you can actualy buy one that people make, they use alot of materials so if i where you i wouldent.also the people in that video are idiots, it is very hard to cut thrue wood strait up and down. it would be more effective if they did it at a angle and most of the time they where just hitting it by the side of the blade.