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October 28, 2012

Nyan Hat

I present Nyan Hat, possibly my silliest and most useless project yet.  Nyan Hat was spawned from a late-night discussion involving at various times Halloween, hats, and Nyan Cat, and went from idea to completion in just over two weeks.

Despite the short timeframe over which Nyan Hat was designed and built, as surprising amount of thought was put into it's design, especially on the mechanical end of things.  Nyan Hat features cam-actuated linkage plates, laser cut gears, and more acrylic and polycarbonate than any hat should have.  

Nyan Hat is relatively simple electrically, at least compared to its mechanical bits.  The 60 white LEDs that make up the stars are controlled by two two-transistor oscillators.  Audio is provided by an old iPod Nano connected to the amplifier and driver from a stripped down set of computer speakers, and the entire hat is powered by a 9.9V, 2.3 Ah A123 lithium nanophosphate battery pack.


  1. Much better is the cat held its relative position and the background rotated.

    1. The wearer just has to rotate accordingly.

  2. Awesome. Should sell it for a fortune on ebay.

  3. I would buy this.
    Please make more.

  4. I would buy also, would make an awesome silly New years hat!

  5. Video please! And yes would buy for sure!

  6. my friend wants one! best christmas gift ever?

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  9. I want one. I live in New Orleans where I can wear this daily. For a discount I will pass your business card to anyone who comments on my Nyan cat hat. Pls. email me:

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