They were baffled at how one costume could take 700 hours to complete, which leads others to think about the factors that go into making a good cosplay. When preparing for a cosplay convention, cosplay costumes for men it is important to plan ahead and take one’s time with the costume. What Makes a Good Cosplay? What makes a cosplay ‘good’ in the first place? Product – Zagone Studios Dress Up Costume Adult Skeleton Gloves (one size) – Great for Theater, Cosplay, Halloween or Renn Fairs.