Answer: petrock

AnswerCrossword Clue
PETROCK

'70s craze

PETROCK

Faddish '70s toy that came in a box with air holes

PETROCK

Faddish '70s stone

PETROCK
Popular '70s fad gift
PETROCK
Erstwhile gag gift
PETROCK1970s fad
PETROCKPopular 70's gift