Tronex Science Lab.

Let's face it, parent.  You may not WANT your house turning into a Mad Scientist's test lab, but with this device, it could be INEVITABLE.  Living with an 8 year old genius could be harder than you think.  If you'd rather not open that door to find out, DO NOT BUY this accursed engineering toy. 

But in all seriousness from an old tinkerer, I would have loved something this well conceived when I was a kid.  I left it wired up for the dog barking circuit, so your little Einstein can begin annoying you immediately.  This is all tested and working.  

It is missing a separate magnet component that is used to interact with a few of the circuits, but any powerful enough household magnet should do the trick.  Electrical engineers are resourceful.  Teach your child this truth today! 

*Batteries not included (It takes 2 AAs)