Broom is a natural sign. Both fists close as if holding a broomstick, and you motion back and forth as in sweeping or mopping. We use the same sign for sweep.
An alternative sign for broom is to use both flat hands, where the non-dominant hand has the palm facing up, serving as the floor or surface, and the dominant flat hand serves as the broom, sweeping back and forth the dust on the floor.
Introduce your baby to the sign for broom when doing house chores. You may want to consider buying a child-size broom to help your toddler gain confidence when contributing to the family unit .
The sign for broom is useful with toddlers trying to be helpful with domestic chores.