A long-time reader alerted me to the fun badges being offered at Velorution.
Sadly, these fun badges are only available in the UK. In looking at the gallery, it appears an approximation could be made with 3M Scotchlite fabric and the Dritz button kits.
I'm thinking a lot about the time change this weekend and how to stay visible and safe when leaving work in the dark. Stay tuned for more ideas and questions.