Green Lantern devotee “Honus” has built his own versions of the original ring, including one that glows. Posting on Instructables, he shows every step but cautions that the ring cannot be sold, even by him (copyright issues, don’t you know.) Still, if you have a smidgen of talent in the area of jewelry-making and access to silver or resin casting supplies, you might give it a shot and make DC Comics glow with happiness because you honored one of their own.