Mallet 
To dream of a mallet implies disorder in your domestic life. Others will cause you great distress with their callous behavior. They don't seem concerned by the fact that you are not in a perfect physical or emotional state.
Gavel
To dream about a gavel represents justice and fairness. It could be indicating a situation that you need to deal with directly.
To dream that you are using a gavel indicates a solution to a particular situation. You or someone else has made a decision about something.
Air Hockey
Playing the Air Hockey table game in a dream is symbolic of your good old childhood experiences or memories.
Alternatively, it means an ongoing debate or disagreement with someone you know very well. If this has been going on back and forth for quite some time, now is the good time to be the bigger person and resolve it.
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