Browse now at your best Online Anime and Pop Culture Shop, THE MAD SHOP. Your One-Stop Shop to All Anime and Pop Culture Merchandise. Whether an Anime Convention, Video Games Gathering, or Pop Culture Assembly, we try to attend and bring you Cosplay Costumes, Action Figures, and Collectibles within your reach. Every time I heard someone talking about Cosplay Costumes in a really exciting tone, I can’t help joining in.