Smellinator

The Smellinator is one of Doofenshmirtz's inventions. When he can't hear his jingle, he plans on using it to spread the smell of dirty diapers through the festival.

Background Information

 * At the end the growth elixir lands in his hand, and Perry kicks Doofenshmirtz onto the range selector, spreading it throughout the whole universe, making Candace relatively normal-sized.