The Librarians show up in full clown get-up at the carnival, arriving in a "clown car". They are eventually captured by the magician at the magic show and are led away to another part of the carnival. Between the time they leave the one tent and arrive at the other, they changed into the clothes they where wearing earlier in the show and all their clown make-up has been cleaned off. It is highly unlikely they brought a change of clothes with them, and that the magician would allow them to change and get cleaned up before attempting to turn them into wax statues.
When one clown honks his nose and points to the lady the magician is waiting for he points to the magicians left but in the next scene he is pointing to the right.
Also the same clown removes his hand from his nose twice.
Also the same clown removes his hand from his nose twice.