marianne gaba (november 13, 1939 – may 3, 2016) was an american model, actress and beauty queen. she was born in chicago, illinois. she was miss illinois usa 1957 and "playboy" magazine's playmate of the month for its september 1959 issue. she was known for her roles as liz in "the choppers" (1961), as animal in "how to stuff a wild bikini" (1965) and as robot in "dr. goldfoot and the bikini machine" (1965).