... A Blackcat in a fist sized mud ball makes a good "grenade." Ah the good ole days.
They ain't totally gone. Last summer I taught my two grandsons all about Black Cats and mud, Black Cats and Fire Ant hills, Black Cats and short pieces of pipe, and I found some firecrackers about the size of Black Cats but had waterproof fuses. These were promptly put into service as depth charges.
Ed