Keyblade of Hearts / Riku's Keyblade

thingiverse

Kairi's Heart was the ultimate prize in the climactic showdown between Riku and Ansem's Keyblade wielder, in the first installment of the beloved Kingdom Hearts saga. That powerful artifact from the final confrontation boasted an innovative design feature: it had a looped segment that seamlessly connected to a chain, forging an unbreakable bond between its two components.