a platypus?

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The design uses a plunger inside the fedora to push the the end of the tail down, causing the visible end to perk up.

 

The eyes use a dual bell crank mechanism to convert the downward motion of the hat into horizontal motion to straighten out the eyes.

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Dr. Doofenschmirtz himself saw it it on the TikTok and I felt famous.

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I like cartoons.