This is a tutorial created by Youtuber SKM demonstrating how to develop a functional Rubik's dice out of cardboard using this template available for free download via Google Drive. It looks...rather complicated. And if you seriously are considering building a Rubik's dice out of cardboard,please stop making me sad and just let me give you the $7 it costs to buy a genuine one on Amazon, I don't even care if you lie and spend it on booze instead but you carry out have to share if you carry out (I like those little bottled wine spritzers).
support going for the video.
Source: geekologie.com