Source: Neatorama

Conference badges are usually ho-hum affairs … but not at Def Con! At the world’s largest hacking conference, there’s an underground culture based on creating intricate badges out of circuit boards.
From Daniel Oberhaus of Motherboard:
At Def Con, attendee badges are never just a token of admission to the conference.
Each year’s conference badge is a printed circuit board (PCB), the same type…
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