Dan said, "You know that I do some acting from time to time in the local theatre. We've been having trouble with one of the costumes. It just looks too fake. However, we do have the ability to make you into a costume that would look more realistic."
Steve said, "I'm not an actor. How would putting me into a costume make it look more real?"
Dan laughed, "We won't put you in a costume. You will be the costume."
Steve asked, "Huh?"
Dan said, "We have the ability to change people. We use it sometimes to enhance the makeup and costumes. That's why our productions often get high marks on our costumes. However, there are limits to how much we can enhance a person without side effects. That's why I'm thinking of having you become the costume. You will have to endure some uncomfortable side effects but that will allow us to change you as much as we need. You don't need to worry about your acting skill. Someone will be wearing you and will be doing the acting. You'll just be the costume."
Steve thought Dan was joking so he played along with the joke. "What kind of costume would I be?"