Mulligans is a peer-to-peer marketplace for golfers that allows buyers and sellers to buy and sell new and preowned golf clubs. The platform was created by Nabil Cacheiro-Hamdi and Katie-Britt Greenway, who were frustrated with the traditional model of buying new clubs and selling old ones for low prices. They used Bubble, a no-code platform, to build their app, which offers features such as searching, filtering, and payment protection. The app has been successful, launching on multiple platforms and gaining recognition at industry events, including the PGA Merchandise Show. Mulligans aims to provide value to the golfing community by offering cost-saving options for buyers and creating a highly liquid market for preowned clubs. The founders plan to continue innovating and adding features, such as a pricing guide, to make golf more approachable for everyone.