Eva has cerebral palsy and is nonverbal. Over the years, she has experimented with many different communication devices and strategies including high-end AAC devices.
At one point she spelled to her mother, "Mom, get me a baseball cap and a laser pointer then Velcro the laser onto the top of the baseball cap." Viola! It has been Eva's primary communication tool ever since.
From time to time Eva is confronted by a professional or vendor in the assistive technology field and asked why she doesn't use an AAC device. The bias seems to be that the more sophisticated and technical the device then the more effective the communication. This is a bias most of us in the field carry whether we like to admit it or not. It was a lesson learned after Eva mastered and then rejected a very expensive, very sophisticated device. I learned that lesson the hard way—as a dad and not an AT specialist.
Simple, elegant and it works!