I wasn't sure how sturdy the Sugru is on its own, so to be safe I added some framework. I used a coat hanger for this. I cut two pieces of coat hanger wire roughly 8 cms long (one piece is slightly longer). I bent them to form a "bridge" shape, the legs being 2cms and the span 4cms. One of the pieces has slightly longer legs so that it can fit over top of the other (see image 4 above). I then wrapped the two piece together with the thinner wire. I formed a little nub at the top with the wire for the joystick handle (it could probably be made longer than what I did.) Since I was making this for the WAXD keys, I skewed the two pieces so that the legs sat on each of those keys.