These were prizes that kids got in boxes of cereal in Argentina. I dont know what kind of cereal, but I hope it was one on of the ‘Monster’ cereals.
Pretty cool collection. There are 9 of them in this auction which seems odd, like there would have been either 10 or 12 in the full set, but who knows.
Maybe Freddy or Hoya could buy these and make a super limited version of the next Madball records that comes with a ring.