Make toys at home with common household materials, often in only a few minutes, that demonstrate fascinating scientific principles.
"Ya, ya" you're thinking- but these toys are plastic hydrogen bombs, film canister cannons, steam powered boats and such. Forget the kids- I'm gonna try some of these! You gotta love anything that has a chapter titled "Fun with high voltage."
I still have the spud gun (a Bic pen ink tube and length of clothes hangar as the plunger- back when they were both metal) and clothespin matchgun my dad made back when I was a wee one.
