Pencil Sharpener Bike Hack

This is a brilliant bike hack:

Recently my pencil sharpener was wear out due to a broken handle, to restore its function I attached an used cassette and a old  chain to it, so by pulling the chain you can sharpen the pencil again.To connect the cassette to the sharpener,I fill the center of the cassette with acrylic sealant  and after dry out(about two weeks)  it’ll adhere to the sharpener.

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