Informative persimmon video in the link below.
Here is a link that might be useful: Persimmon usage in Japan
Wow! That was awesome Tony. If some Japanese movie director ever decides to make the Japanese equivalent of "The Graduate," kakishibu will have to be substituted for "plastics.".
I may crush some of the green astringent American persimmons and make my own solution and paint the swing set with it for rain and snow protection.