Popsugar Pets Pet Shopping The Best Halloween Costumes for Pets These 11 Pet Halloween Costumes Are the Best Thing I've Seen Today 1 September 2020 by India Yaffe View On One Page Photo 1 of 11 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 USPS U.S. Mail Carrier Dog Costume If this USPS U.S. Mail Carrier Dog Costume ($18) isn't the cutest thing we've ever seen! USPS U.S. Mail Carrier Dog Costume $18 from store.usps.com Buy Now Previous Next Start Slideshow ShoppingPet ShoppingFunny PetsPetsHalloween CostumesHalloween