User blog comment:Emitewiki2/HAPPY HALLOWEEN!/@comment-5557081-20131101020416

We had a similar event at our town high school this year, a safe Trick-or-Treat where kids could participate in activities in classrooms hosted by various clubs while trick-or-treating. I volunteered as a part of my Electronics Tech class, where we showed our "Spooky Circuits" to the kids. Mine was a moon which had alternating LEDs and a motor-gear system in pool of water, so the moon appeared to "control the tides". :P Hope you had fun at your event too!