Nisha Kumar (@nishakmr) This year’s DefCon DC503 badge was not a badge at all but a bangle with Bluetooth LE controlled lights. It was a risky gambit that paid off (or not, depending on your perspective). Nisha is the badge designer for the DC503 badge for DefCon26: https://github.com/pdxbadgers/2018-banglet. She also maintains an open source project: https://github.com/vmware/tern