This was a costume prop my brother and I made for our nephew Carter.
Nothing special, just soldered a ring of white LED lights into a transparent 3D printed ring, and powered it all with a couple coin cells. Somehow we missed an LED and couldn’t get it working. And since we welded the LEDs between the ABS printed parts. We would have to destroy it and start over to try and fix it.
I wish I had taken more pictures early during the build.