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In theory, Albert Einstein and E = mc2 show you have potential... you know, relatively. UPG’s enamel pins are packaged in sets of two with rubber pin backs. Wear your heart on your sleeve and big ideas on your collar, your hat, your backpack… for a little inspiration everywhere you go. 5093
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🇺🇸 Ship from USA · On Agora since 2025
$16.95