I have a version of the YDM for sale. It was first built by an engineer in Toronto and then shipped to Fritz to Denmark for completion. I originally wanted this YDM for my school robotic shows but it is too small for the student audience to see.
It works perfectly. Although it does have one of its front drumming sticks bent due to shipping.
I will probably put on eBay if I don't receive any offers here.
Email me with any questions.