Tutorial: Light-up leggings

Carleyy‘s tutorial on Instructables shows us how to use soft circuits to make leggings sparkle. She says,

Create a light show with these light up LEDs.  Wear them dancing and all eyes in the room will be on you.  Wear them running and drivers will know to get out of the way! This is super easy to do even if its your first time building a circuit.

See the tute.