... Strange request ...
No shit!
Being serious though, no self respecting nostalgia fan should be messing around with 'safe' modern toys, you should be finding some proper toys, survival of the fittest, just like back in the day.
... the kit came complete with three "very low-level" radioactive sources, a Geiger-Mueller radiation counter, a Wilson cloud chamber (to see paths of alpha particles), a spinthariscope (to see "live" radioactive disintegration), four samples of uranium-bearing ores, and an electroscope to measure radioactivity ...... a 30-inch "authentic Civil War" cannon draped in the Confederate flag. The Reb fired hard plastic cannonballs with a spring mechanism—the aspiring secessionist need only pull a lanyard. No word on exactly how fast the cannonballs flew, but they traveled up to 35 feet and seemed perfectly sized to lodge into an eye socket ...