Another childhood treasure chest of death was the home chemistry kit. My kit had a bunch of toxic chemicals along with an alchohol burner. The kit came with a booklet that offered "fun, safe" experiments to do, but how much more exciting to mix up a bunch of chemicals at random and heat them in a test tube over the burner until something happened! Usually, you ended up with congealed glop, but once in a while the test tube would send out clouds of gagging fumes or even explode in a hail of glass splinters!

I might also cite a popular toy from the 1960s that generated a significant number of minor injuries -- the Superball. This ever-bouncing demon was as hard as a golf ball and could zing at your face from completely unexpected directions. What fun it was to slam one into the wall of the classroom and watch all the students ducking and dodging frantically, trying to avoid being superballed in the eye!