When we were told to give a 1 to 2 hour session to 8 to 18 year old kids about what we do, we didnt knew what to do.

We do Programming, Electronics, PCBs, Arduino, 3D Printers and what not - so we went with the general idea of MAKING and Maker Culture.

Asked on HackaDay Stack page about it: https://hackaday.io/page/1895-led-throwies-any-other-bright-project-ideas-for-kids-8-to-18

and though some of the suggestions were awesome, we were a bit short on time. so we went with LED THROWIE KITS, we call JUGNU, which is Urdu for Firefly