I like to think that Jon takes over as Superman and Clark wears a blue kryptonite ring so he can age with Lois and they pass away peacefully together. : r/superman
Smallville, Superman's Early Years, Clark and Blue Kryptonite - YouTube
Midnight and Sea Moss - Etsy | Wedding ring bands, Vintage groom, Wedding bands
Fidget Ring™
Tactical Black "Kryptonite" custom ring – Tactical Black Vault™
Blue Carbon – Sigma Rings
Blue Kryptonite background by KalEl7 on DeviantArt