Hand Blown Glass Cremation Keepsake Pendants. Each keepsake urn is made with a technique called lamp working. The artist works the glass over a small flame of intense heat, adding luxuriant colors, blowing and shaping the piece to the desired form. A mold is used to uniformly thread the top, so the non-corrosive chrome closure, fits perfectly. Each urn is unique and sizes vary, approximately 1 1/2" x 3/4" on a black satin cord. These unique urns are a welcomed remembrance today, and a family heirloom of tomorrow. Included is a black and white snap close gift box, with a velvet pendant pad, a small funnel, and a tube of adhesive.