I have so got to try this (making dorodango)
I saw this on MYTHBUSTERS and looked it up on the internet and this is what I found out. It is the art of taking mud and water and rubbing it until it becomes smoooth and shiny!!! It looks like a colored cue ball or large marble. It seems very simple and yet I am sure I will make this difficult. I will post a picture of my results when I get finished. Let me know how yours turns out if you attempt one as well.
http://web-japan.org/trends01/article/011005sci_r.html This is called hikaru dorodango!