"Jokester" by sapoots.
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How can I make my friends suffer? OH! Let's take a photo here! Oh wait, I forgot my camera batteries. Lol, I don't care. What's this sign say? Oh, I can't take photos here? Well, doesn't matter. My camera has no batteries! Let's see how long they'll hold me muahahahaha.
 
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*Postcards are 4.13" x 5.83"