We called the game “SKULLZIES”…never heard it as “Skully-etc.”. This was circa ’63-74, Bay Ridge…56th St between 6th and 7th ave. We would do the melted crayon, sometimes melted over a coin for weight. I remember running a coke bottle over manhole covers too…if you were lucky, the top lip would come off ala glass ring.
PS: How about the 4th of July in Bay Ridge! Literally sounded like the bombing of Hanoi!