Spreadshirt is an e-commerce platform that allows anyone to create, sell, and share ideas for apparel and accessories. It handles transactions, printing, delivery, and customer service so idea owners can focus on creating designs. Designs are sold through Spreadshirt shops, partner shops, social media shops, and marketplaces like Amazon. Spreadshirt pays idea owners a profit and has a database of over 9 million crowdsourced designs created by independent designers from around the world. While crowdsourcing provides many creative ideas at low cost, managing large crowds and ensuring a good customer experience presents challenges.