Find Fido at Night with the 3D Printed Light-Up at Night Pet Collar

11-year old Blythe Serrano made a 3D Printed Light-Up at Night Pet Collar, which she was sharing at World Maker Faire New York 2014. It has nine LED lights, a battery, and a light sensor. When it’s dark, the lights illuminate so that you can see your pet easily. She used Sketchup to design the collar and inserted the LEDs inside.