I had Creepy Crawlers, and burned the crap out of my hands. I also got an electric guitar from Gibson's Disount store, and it nearly electricuted me when I tried to play it barefoot and sweaty in my garage in Beaumont, TX in 1966. We didn't need dangerous toys though. I remember going around after Christmas, and gathering up all the neighbors trees and piling them up, then swinging from my friends treehouse and landing in them!