LED Fidget Spinner
I designed this LED Fidget Spinner in Tinkercad and 3D Printed it on my CR-10 3D Printer.
The design uses five 5mm LEDs and a 2032 3V battery.
The LED leads are held above the battery with a spring washer between the LED leads and the battery. Pressing on the end cap closes the circuit and lights the LEDs.
Full details are in this video.