Build DIY bike lights at the Hacktory

If you ride your bike at night, you really should be lit up. Spend an evening at this fantasy maker studio (which feels like you shrunk down and are living inside a giant, well-stocked toolbox) to follow along and add a battery-powered strip of bright LEDs to your handlebars. There's also a follow-up session where you can sew on a pouch to make it waterproof.

Where: The Hacktory at 3711 Market Street

When: July 21, 2015 at 6:00 p.m. to 8:00 p.m.

How much: $30