Walmart offers the Funko POP! DC Comics Mystery Box for $13.55. Opt for in-store pickup to dodge the $5.99 shipping charge. That's $6 off list and the lowest price we could find. Originally released as a Walmart-exclusive for Black Friday, each box contains the Killer Croc Imposter Batman POP, Batman Animated Series Two Face Dorbz POP, Harley Quinn Imposter Batman Pocket POP, and a random DC Pint Size Hero.