With some of the toys we had I amazed so many of us made it through our childhood...
Water wiggle - a hard plastic dome that you attached to the end of a water hose. It forced the water through a small nozzle that caused the dome to fly around (while still attached to the hose) with quite a bit of force. Getting hit by a water wiggle was not fun, but it really was!
Lawn Darts were awesome. Take a regular dart but make them about a foot long with sharp metal tips. Now throw it up in a high arc to get it to land in a circular target (like a hula hoop on the ground). Sounds like fun, until they land or a head or a foot.
Clackers. I still have one of these. Two hard acrylic balls about 1.5 inches across attached at opposite ends of a string with a small ring dead center. Holding the ring you could get the balls to bounce off of each other. With a little patience and coordination you could go fast enough so the balls would clack together below your hand, and as the balls parted you would quickly move you hand through the gap between the balls and get them to clack together above you hand. Made a lot of noise, hurt like heck if a body part got between them just before striking each other, and sometimes the string would break sending the hard acrylic projectile flying off somewhere with enough velocity that it was guaranteed to damage something.
We only had three TV VHF channels, maybe a fourth on one UHF. Remote controls? Nope. If you wanted to change the channel or adjust the volume you have to walk over to the TV set and manually change the settings.
Cars did not have power anything. Windows used a hand crank attached to the doors. You had to use a key to lock and unlock the doors.
I also remember in second or third grade they put a few drops of mercury in our hands so we could play with it!
