Eyes:
One of the most outstanding features of Thanos is his set of bright yellow eyes, which you can recreate with non-prescription colored contact lenses, or you can skip this step if you’re in a rush.
Outfit:
With his heavy blue and gold armor, indigo body vest and brown pants, Thanos has a distinctive appearance. You can get a similar look by getting a blue and gold body suit or shirt-and-pants matching set, which are available from most online retail websites and shopping malls.
For the gold armor plates, you can browse your favorite costume website or Halloween stores for the right supplies. Keep an eye out for shoulder coverings especially, as Thanos’s stand out in a noticeable shine from his face.
Purchase a pair of brown pants from any retail website, thrift store or shopping mall, or if you’d rather follow the ‘Infinity War’ style you can purchase a black loin cloth to wear over your body suit instead.
Accessories:
To complete your Thanos costume, you’ll need a few supplies including knee-high metallic gold boots, a heavy gold-crested helmet and Thanos’s gauntlet, which is also gold and has the knuckles bejeweled in various colored infinity stones.
You can purchase boots from any local shoe shop or retail website. If need be, use metallic gold acrylic paint to create the gold look. Search Halloween stores and costume websites for the helmet and glove in a replica form, or use craft supplies such as decorative rhinestones, paint, plastic and foam to make your own homemade accessories.
Use glue or stickers to hold any rhinestones or fake jewels in place so they won’t chip or fall off during your cosplay event, and get some friends to go with you dressed as other characters from the MCU.