The material below is Open Game Content from a 3PP Source
Ring of Arcane Signets
Aura faint universal; CL 1st
Slot ring; Price 1,000 gp; Weight —
The amorphous, approximately 1-inch-square chunk of rosy crystal that dominates this otherwise plain copper ring forms itself into a specific rune, sigil, or similar identifying marker each time a person first puts it on. If the wearer expects this to occur, he can cause the crystal to adopt any shape he wishes. If the wearer does not expect this to occur, the crystal instead molds itself into an image that symbolizes the wearer or some dominant facet of his personality. Once the crystal assumes this initial form, it always does so whenever the wearer puts on the ring. The wearer can, as a standard action, embed this image on any object (as if using arcane mark) simply by pressing the ring against it. The wearer may choose the color and other cosmetic features of the image each time he uses the ring. The brand is otherwise permanent unless removed by dispel magic, erase, or a more powerful spell.
Requirements Forge Ring, arcane mark; Cost 500 gp