The Original American Kazoo Company - Eden, NY

From the site: The Original American Kazoo Company was established in 1916
and is now the only metal kazoo factory in North America. The museum
highlights history, amusing trivia, and shows step by step the way kazoos are made.

This working museum continues to manufacture a complete line of kazoos.
Believe it or not, kazoos are made the same way today as in 1915.
The Kazoo Factory machines that make kazoos are the same die presses
that were installed in 1907 when the building housed a sheet metal workshop.
Over the years, demand for kazoos became so great that the other
metal operations ceased. Today, as in the past, over 20 machines are run
with one 10 horsepower motor connected with overhead jack shafts and leather belts.
The factory is truly one of the few remaining working museums.