Popsugar Celebrity Diy Halloween Costumes 100+ Pop Culture Halloween Costume Ideas 500+ Pop Culture Halloween Costume Ideas That Will Make 2019 the Best Halloween Yet 27 October 2019 by Laura Marie Meyers View On One Page Photo 240 of 562 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 240 Gamora From Guardians of the Galaxy What to wear: A black leather waistcoat, black trousers, and leather gloves. Most importantly: paint your face green. How to act: Like a killer — and don't be that friendly. Not at first, anyway. Previous Next Start Slideshow DIY Halloween CostumesHalloween Costumes For MenGroup Halloween CostumesHalloween Costumes For WomenCouple Halloween CostumesPop Culture Halloween Costumes