Pintrest couldn't find the picture on the page but this is a 500 in 1 electronics kit you can use to learn to build circuits and about the inside of electronics. No soldering is required and no tools required. Sounds like fun!
"Building Bristlebots: Basic Toothbrush Robotics": With a bag of toothbrushes and some basic electronics supplies, you can give a group of kids a fun introductory #robotics experience! Once you have a crew of working bots, get creative building mazes and tracks!