Your local skateboard shop should have them if they are a good shop. The big brand name is Vew-Do. Look at the bevels and decide if you want a full cylindrical one like in the photo or the one that bevels down. Or better try to find a used one, it's one of those things people get tired of forever and it sits for years without being used.
Anyone remember the Gilbert U-238 Atomic Energy Lab? It had three low level radiation sources and a geiger counter.....Recalled....:-D
We had Lawn Darts with the heavy metal tips. I remember we got bored tossing them at the hoops and made a new game where we biffed them straight up in the air and tried to catch them before they hit the ground. That was much more fun. Slightly less dangerous than our pellet gun wars, long before paint guns. Thankfully video games came out strong when I was 12 and we all started playing indoors, I could have been killed otherwise.
I remember buying an irradiated dime at the Worlds Fair. Remember those archery sets with non-rubber tips? We survived because we learned young that it hurts to hit your thumb with a hammer. Thus, we learned to keep our thumb out of the way. (Best to learn this with a wooden toy rather than a 16oz. framming hammer.) Which reminds me of my grandpa's attachment for the drill. He had an attachment that would turn a drill into a circular saw. (Keep your fingers away). Bicycles without helmets! Oh, horrors. Metal monkey bars on the playground. (My brother broke his arm on one.) Wooden baseball bats. (I broke 3 in Little League.) M-80's When did we, as a society, decide to put my nervous aunt in charge?
i don't remember that one, but i do remember every kind 7th grade having a chemistry set, except me. and i do remember spring loaded dart guns that would launch anthing that fit in the barrel. including coaxial electrolytic capacitors of the right diametier with the leads cut mostly off but with an 1/8th of an inch still sticking out the end where it would pierce the skin of anyone hit with it within a range of about 20 feet or so. i remember one christermass my dad got me this tonka truck that had a missle launcher on it that worked the same way. i remember glow in the dark watches with radium coated hands and numbers, and lionel streetlights that had glow in the dark bits of radium in them too. had both. lots of fun.