The swing can help children with Autistic Spectrum Disorders (ASD). It is used frequently by many OT's and schools for sensory input, thus helping children with balance/equilibrium development.
The irregular spinning / rotary movements are alerting in nature. Autistic children really enjoy this swing and we have had reports of many smiles. This may be that special gift for that Special Child.
This swing may be eligible for state aid. Ask your local contact for aid forms.