A memorial object including inner cremation contents, and a housing structure for housing the inner cremation contents, the housing structure being made of at least a first fluid, wherein the housing structure is maintainable in a predetermined solid shape only upon maintenance of the housing structure under a freezing temperature of the first fluid. Preferably the fluid is water. The invention provides a sustainable method of making a dissolvable memorial object or urn by transforming water into solid shape of ice encapsulating cremation ashes.
