Designers Jasna Sokolovic and Noel O’Connell invented the Retroreflector Tie. It's a tie with built-in reflective stripes to make bicyclists more noticeable to automobile drivers.
Link via OhGizmo! | Jasna Sokolovic | Noel O'Connell | Photo by the designers
Hard to believe people in modern society still wear something oh so 18th century.