Knock Knock Penny Adult Unisex Big Bang Theory Gift Idea Funny T-shirt

Knock, knock, knock, "Penny?" Any fan of the hit sitcom "The Big Bang Theory" will instantly recognize Sheldon's trademark knocking pattern from his frequent visits to Penny's apartment. Order your t-shirt now, and start annoying your neighbors with your attire in addition to your Asperger's.

• Black or Red
• 100% Cotton
• Officially Licensed
• Standard Fit

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