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I can't tell if mine is also sad or just sporting a killer moustache https://identicons.github.com/thoradam.png

I'd call it somewhere between sad and pissed off. Not an identicon you want to fuck around with, at any rate.

Reminds me of a Creeper.

Maybe this will cheer you up: https://identicons.github.com/thejerf.png (More obviously a smile in the favicon view in the tab than the blown-up view. Pity I can't close the mouth.)

And mine is happy! :3

https://identicons.github.com/kronopath.png

Or Grendel

http://images.darkhorse.com/covers/300/g/grbwrtpb.jpg

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