Border Chrome Ring

Wraps any element in a thick tube of molten chrome — a WebGL shader fakes a 3D torus cross-section across the band width (not a flat gradient), lights it with a rotating banded environment reflection so bright/dark stripes sweep around the collar, and perturbs the band's own boundary with noise so it wobbles like liquid metal instead of holding a fixed shape. Hovering biases a specular hit toward the cursor; pressing bulges the metal outward and pools it toward the pointer; releasing sends a ripple once around the ring.