Joe, right now the designer is working only on the mechanics of the arm. Once that's done, we will work on the profile, comfort, etc. as you mention. I believe that, ideally, it should fit more like a glove. We'd also like to incorporate sensors etc so that the child is reminded to use their arm, some vibration for proprioceptive input, etc. The current version, once finalized, would be printable at your local Office Depot (if it has a 3D printer) and you would assemble it yourself.