Larkin's younger brother, Finn, had a fidget ring on his holiday wish list this year and Larkin took that as a challenge!
They started with a thick band then fit a thinner, hammered band loosely around it. They added concavity to the thick band to hold the thinner band securely in place. The thinner band is loose enough that it spins freely. They added a knobble and clasp to the thin band as one more fidgetable element.
As a use-tester, I can vouch for both the comfort and the satisfying fidgety goodness of the finished ring!