the asalato is used by african ninjas since ancient times.
it makes crazy percussive syncopated rhythms to confuse and distract the enemy.
can also be thrown for deadly impact.
i dug up a long forgotten promotion video made by a skilled japanese warrior to impress the local african shogun:
you can't buy these anywhere, the legend says you find asalato only in kalahari desert attached to the hoofes of a karibu struck down by lightning.
mastering the technique takes up to 60 years because they can cut your fingers off the instant you touch them, asalato strings are as sharp as the teeth of a grizzly bear!
and that's why they're also called Grizzly Balls.