Heinz Doofenshmirtz has made more than one Shrinkinator. The first one was called "Shrinkspheria", which only targeted pelicans, ear hair, blinking signs, the movie "The Unicorn Whisperer", musical instruments that start with "B", and many more. The second one was in "Not Phineas and Ferb", and which was used for getting monuments all around the world for Dr. Doofenshmirtz's new train set. He once attempted to pitch his Shrinkinator on Shark Tank, but it backfired. In "Let's Take a Quiz" he says he keeps leaving to unplug the shrinkinator which shrunk there "Let's Take a Quiz" stage, bleachers, and microphone. Also it shrinks the teleporters in "Does This Duckbill Make Me Look Fat?"
- "Mom's Birthday"
- "Does This Duckbill Make Me Look Fat?"
- "Let's Take a Quiz"
- "Not Phineas and Ferb"
- "Shark Tank"