Propagating carrots - sponge

The magician shows the audience a carrot. Suddenly, a second carrot appears out of nowhere. When he realizes he's holding two carrots, he decides to put one in his pocket, but immediately another carrot appears, then another, and another... And in a surprising climax, a large carrot appears in the magician's hand!

• These well-made biscuit carrots are approximately 10 cm long. The large one is approximately 19 cm long.