Pogs, Crazy Bones, Beyblades... what else? Do you have any memories of such toys causing ruckus?
My school banned beyblades back in '04 or so when some dumb kid managed to get one into their eye. Pretty sure Gogos also got banned after fights broke out.
Then one summer day me and my two friends had the genius idea to turn slingshots into "competitive" toys. We had good time shooting each other with those until I landed a stone right in the middle of another kid's forehead, which made us quit :(