Various movies of the penultimate "pen pen"

I think that there are many people who have done to kill time during classPen turn"Movie. However, the continuous technique of the extreme people is becoming amazing. It seems there are various techniques and combos.

The movie is from the following.YouTube - JapEn - Japanese Collaboration Video


YouTube - Pen turning kingdom 1st CV


YouTube - Pen Driving Kingdom 2nd CV


Here is a description of various techniques on the site
Pen turning materials room