Ideas
Pack & Play
OK, the name is taken but but the idea here is to make something for use at spots for kids who need the sense of presure to feel their body. This is just high level observation but create an inflatable body tube that holds the child but then allows for gradual introduction of objects to manipulate. Maybe the objects change the pressure. Again, not really sure where I'm going on this one.
Air Splints
http://www.first-aid-product.com/industrial/inflatable-air-splints.htm
Auditory Goals
Adapt an open space with either an overhead webcam or infa-red to detect object and body placement.
Imagine a 10 x 10 area of the floor at Spots taped off. Regions can be assigned audio feedback. The OT can create whatever obstacle is suited for the child and the corresponding reward stucture or encouragement can be added.
Text Rain
Camille Utterback http://www.camilleutterback.com
Make something based on edge detection that encourages and rewards large motor skills and fine motor skills. basic reward structure for PT/OT/
Sessame Games
Create an alternate interface that lets a child access and navigate the on-screen games created by sesamee street. This one, like the others is totally open right now but something of interest in that there is so much good material available that alternate interfaces (replacement of keyboard & mouse) can open up so much.