6. Mitch Hedberg

Even his autographs were genius.

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camshaftcarb

7. Sean Astin

He signed this after a man told Astin that his wife cries at the end of 'Fellowship of the Ring,' every time. We're guessing this signature made her cry.

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thejohnblog

8. Neil Patrick Harris

So far, so good, autograph-getter.

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killinitradio

9. Steve Martin

Apparently he hands these out whenever someone asks for an autograph. Hey, at least they still technically get that autograph, unlike this other guy who hands out similar cards....

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krisreisz

10. Jonah Hill

Letdown, indeed.

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BigAstra