Stabilization
There are a number of ways to stabilize toys for children with physical disabilities. Commercially available mounts, like the Slim Armstrong mount from AbleNet, hold switches in a secure position. And "low tech" ideas include: homemade PVC mounts, C-clamps, velcro, bungee cords, etc. The objective is to stabilize the toy within the child's reach and make it easier to manipulate.
Additionally, we can use surfaces that prevent materials from slipping out of reach. These "low tech" solutions can be used throughout the daily routine. Dycem is a flat sticky plastic that can be placed on a work surface and materials can be placed on top of it. Use it to grip paper in the art area, plates and cups at the lunch table, the tea set in the house area...whatever you need.
A simple square of indoor-outdoor carpet (very inexpensive at home improvement stores) can become a great gripping play surface. WHY? Because Velcro sticks to it! So any toy with a spot of rough Velcro on its bottom will stay put on the carpet piece.