Circus Wagon w/ Bar Front
Unfasten the cage front. Show the interior empty.
Place a balloon inside, close the door.
Anytime you wish, BANG goes the balloon. And a big rabbit completely fills the wagon.
Party favors will spill out the front.
Neat combination with a livestock vanish.
Entirely mechanical, self-contained and angles are not a problem.
Produce a vent figure, Small DOG, Cat, or a few Doves