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Cowboy Hat Dangle Earrings
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Starfish Lapel Pin
E=MC2 Lapel Pin butcher knife Cowboy Hat Dangle EarringsE=MC2 Special Relativity Equation E = mc2, equation in German born physicist Albert Einsteins theory of special relativity that expresses the fact that mass and energy are the same physical entity and can be changed into each other. Show off your knowledge with our E=MC2 pin. Hand cast in solid, lead free pewter, our science pins have US made, military style clasp backings to keep your pin secure on a coat, hat, bag, or lanyard. Our energy pins arrive
US$ 1827.38
US$ 36.00
US$ 548.42
US$ 1809.69
US$ 4310.49
US$ 10.00
US$ 70.00