Get groovy with some of the greatest items from the 1970s that the Pawn Stars have ever seen: a ginormous Richard Nixon head, a shoe possibly worn by Secretariat, a Mattel Electronic Football Game, a signed ”Star Wars” script, some signed Arthur Ashe memorabilia, a couple of vintage Aerosmith tour t-shirts being sold by an original member of the band, and a flag from Apollo 16 that sends Rick out of this world.