A combination of a full-sized cremation urn and a keepsake-sized cremation urn comprises a full-sized container sized and configured to receive therein cremation remains of a deceased, the container including an externally threaded neck defining an opening and an internally threaded lid for closing the opening, and a keepsake-sized container sized and configured to receive therein only a portion of the cremation remains of the deceased, the container including a base plate, an upstanding externally threaded cylinder attached to the base plate and defining an opening, and an internally threaded lid for closing the opening. The full-sized container lid and the keepsake-sized container lid are substantially identical.