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He doesn't really look like he wants you to have a nice day, but the sentiment is there.
Via: Craft http://blog.craftzine.com/archive/2010/09/invadersletterpressnotecards.html
Sometimes you have complicated feelings to express and the only thing you can think of to convey said feelings is a hamster dressed as a lumberjack. Go with your gut.
Inside is a cyclops monster, there to love you forever. I accept!