Backyard Hodge Podge The boys create a new invention using recycled parts from past projects. Mom is too exhausted from baking pies all night and begins hallucinating, even to the point of actually seeing Phineas and Ferb's big idea. Meanwhile, Doofenshmirtz, after learning that one of his inventions is used for good, creates an Eye Fog-inator in order to earn more royalty checks for evil.