I work at a public library where we have a couple of Rift+Touch rigs set up for our customers to use. One of our customers has symbrachydactyly in his left hand (in his case basically no fingers) -- we'd like to find a way for him to still retain partial functionality of that left Touch controller. I think we can design an attachment so that he will be able to move it around in space, but I'd like to also get him access to at least some of the controller's buttons (grip and trigger, maybe). The only way I can think of to do this is via a servo-driven mechanism attached to the Touch, but I'm hunting around to see if anyone else has tried to solve this problem. Any suggestions for avenues to pursue?