How does Let's Make A Deal craft its Zonks?

Monty Hall always loved Zonks. The co-creator and longtime host of Let’s Make A Deal first introduced the concept of a Zonk—basically, a booby prize—to the show during his tenure on screen. At the time, Zonks were often animals like goats and donkeys, but as time has gone on (and animal rights laws have evolved) the show has come to feature more “artistic” Zonks, like “Fur-arris” and living rooms made entirely out of cardboard.