Periodic Rings
These "Periodic Rings" from Itsnoname are cute, but available only in silver, gold, and platinum versions. What, no meitnerium version? Like a company selling $6,500 platinum rings doesn't have enough money for their own personal heavy ion smashing facility.
Product Page [Itsno.name via Uncrate]

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What, no Hg (in glass)?! That would be teh best...
These guys are fantastic. I sent them an envelope stuffed full of small-denomination, nonsequential bills, and my arsenic ring was delivered to my mail drop, no questions asked.
Curiously I'm wearing a O2 nose ring with H2 cabochons.
Just be sure to take off your K or Na rings before washing your hands.
I had an He ring but I lost it.
I love my Pb ring! I have an urge to make a hat. not just a regular hat, but a blue hat. So blue that it looks just like an apple! Yes I just love my Pb ring!
I've got to get me a Kr ring.
If they had one in Pd, I would buy it in a second! I really believe that the Pd market will overtake Pt for jewellery...