This page shows off a variety of the builds that I've created over the last year. I hope you see something that might help you, if only to inspire you for an idea that would fit your unique situation perfectly. Design is rarely a one-person thing, and your device should be for you, not a cookie-cutter approach.
Not everything in accessibilty has to have LEDs and lots of moving parts. Sometimes it's as simple as improving what's already there.
This was designed to allow WASD movement with just palm/elbow locomotion. The three buttons were for Q, E, Z, and pressing the palm down was for C.
Designed to take the input from two Wii Classic Controllers and combine them into one, this device emulates a Switch controller so two people can work together on one game.
Bulky as all-getout, and sturdy as can be, this behemoth was designed to act as a WASD replacement for people with Cerebral Palsy.
With an easy-to-press, clicky keyswitch, this button connects to the XBOX Accessibilty Controller via a 3.5mm jack.
This one did well sitting on a wheelchair arm or being suction-cupped to a tabletop. It connects to the XAC as a compact joystick.
Based on my design for the palm controller, this is a mouse that is controlled via joystick. Each of the three buttons acts as the left, midle, and right mouse buttons.
This was an experiment in making an inexpensive, wireless head-mouse with sip-and-puff for clicking. While it could be finicky, it was viable.
A little converter that would allow you to use a Wii Nunchuck as WASD or a mouse via wired USB.
Designed to work with a ton of game systems, this one-handed controller was customizable, portable, had a dedicated button for every function, and ran off of a wired USB-C connection. It could be used with either hand since it's designed to sit on its side. It also has a 1/4" threaded insert so you can mount it to an armature, a tripod, or a variety of other devices.
I was recently granted a provisional patent for it, so that was pretty neat!