Jewelry Design Safety Pin Ring by Margarita Prysiazhniuk These fully functional safety pin ring that sits over three of the wearer's fingers and can double up as a brooch, pendant or bracelet.The design of the piece was combined with its technical side while maintaining it lightweight. First, a 3D model was created and grown by prototyping on a 3D printer. The cast was made in gold and polished. Then precious stones were fixed into the base product and the parts were connected.