This seems like a viable design for a wooden dummy. I like the way the body can be moved up and down the post for variable height. That is very useful. Notice in the video where his Dad, got the idea from for the body - Sushi rolling mat-thingy.
The arms come from a table leg - that is interesting. The design they have for the legs could be simpler, as it has groves in but that is not inevitable.
I would like to see him use this, to see what type of force it can take. I like to see what they would consider doing about a leg for it.
