
Yes, you can buy your own Radioactive Tritium Glow Keychain on eBay for just $24.99. Plus, “the tiny piece used in this keychain will glow for about 10 years.” Auction page. Click here for first picture in gallery.
If you’re worried that keeping something radioactive in your pocket next to your gonads is a bad idea, keep in mind that the particles emitted are supposedly so weak they don’t even penetrate your skin