[nicwise]

I'm out of my depth in more than one way here.

How about rigging a bite switch to the ubikey (either directly or via something like a raspberry pi / beagle bone). That's assuming that the only issue with the ubikey is you pressing the button.

Maybe (if it has an rpi) it needs a sequence. Bite. Pause. Bite bite. Pause. Bite. Etc.

I suspect you'd need someone to build it for you but I doubt there is a shortage of capable or willing people here. Sadly, my electronics skills are not up to it :(

I'm always impressed by people with accessibility issues using technology (or whatever is the correct term - sorry if that's at all offensive :( ). I've managed to make one of my apps a lot more useful to blind/partial sighted people after talking to a guy who can't see. It took me about 30 mins, and made the world of difference to him.