To dream of ice cubes used in drinks represents issues that increase your comfort level in some area of your life. It may also reflect an enticement or incentive to think or behave in a certain way.
To see dream of melting represents enticements or incentives that are ending. Something that motivates you to think or act in a certain way is coming to an end. A bargain or easy opportunity may be lost.
To dream of being unable to find or get reflects life situations that limit your ability to feel comfortable. It may also point to a situation that lacks any enticements or incentives.