For something like a hammer (See also: Hammer) or a mallet to appear in a dream indicates that we may be using undue force or power to achieve a certain outcome.
The mallet is also the directing will, and to have such an item in a dream indicates that we may be attempting to make things happen in a way that is not necessarily appropriate for that particular situation.
A mallet suggests a form of spiritual power and energy. However, because of the symbolic qualities of the mallet, we need to be aware of how the power and energy is being channelled. [1]
A mallet is a hammer for a particular purpose, and in dreams will suggest that we choose tools that are right for our task. Also consult the entry for hammer. [2]
To see a mallet (doing nothing) shows that you will be treated badly while in ill health.
To swing a mallet yourself shows domestic disharmony. [5]
2. Symbol of hard work or problems to be dealt with.
3. Sexual symbol. [7]