Hikaru Dorodango

If you have never heard of this, then you are not alone. Basically, this is a hobby where you spend time polishing dirt and yes it does involve normal mud that you roll into a ball. You then need to get the moisture out while polishing it and it does end up shiny like this although how anybody could have the patience to do this in the first place is a mystery.
This Post Belongs To Weirdest hobbies