It is said that Japan is the country where the largest number of different types of kendama are produced. There are hand-crafted versions that have a local flavor, "baseball kendama" that are made in the shape of a baseball bat, and "horror kendama" that have a scary face painted on the ball. A digital version of kendama made from transparent plastic and containing IC chips was on sale in 1998. This product was called Digi-ken.
Let's look at a few of these kendama variations.
(photos provided by Maruishi Teruki, a member of the board of directors of the Japan Kendama Association)