Instead of tossing the old outfits that you’ll no longer wear, you can sell them online. Customer Risma Sandra Irawan has bought at least 30 outfits for her cat Sogan and puts in orders for special occasions like the Muslim festival of Eid al-Fitr or at Christmas. If it’s a well-constructed costume and you’re a fairly popular cosplayer, guardians of the galaxy costumes you can make a lot of money by selling the old costumes.