Hi Peaches!
We would really love to give you an assist on this matter.
One tool that is being increasingly recommended by occupational therapists to include in your child’s routine is sensory toys. These toys come in many shapes and sizes including, spinners, chew toys, cubes, rings, and hand toys. Sensory items work to engage a child’s preferred sense in a way that is enjoyable and makes sense to him/her.
They may help children with autism focus, calm down in stressful situations, or relax. As a child is able to process a sense better, toys that highlight other senses or a variation of a sense may be introduced. The ultimate goal of sensory toys is to decrease a child’s fear and discomfort around his/her senses through a natural way of learning: play. This may trickle down into other skills such as improved communication due to lowered levels of anxiety or frustration. As mentioned above, consistency is key as with any intervention, and involvement from the child’s parent or caregiver can be greatly beneficial to the child’s progress.
Here's a link for a complete guide in regards on how to choose the best sensory toys, it's scientific-based effects for improvement and nourishment.
Best Sensory Toys for Kids with Sensory Processing Issues and Autism