Toy to the World
S01E16 - Airdate: 2008-02-22
Runtime: 15 min
Based on the fact that a platypus doesn't do very much, Phineas and Ferb create a wooden toy version of Perry to sell to a toy company. Meanwhile, the real Perry heads off to stop Doofenshmirtz from building the Great Wall of the Tri-State Area and starting up toll booths at the only exits.
Episode details and rating from TVmaze.