Published by OneSwitch.org.uk Thursday, 24 March 2016 10:50 pm.
Pictured top is a "C-SID2" (an adapted Mayflash arcade stick) with MERU Moozi joystick and accessibility switches attached. Pictured below that is shows an attached Xbox One joypad which works simultaneously.
All manner of controls can be formed from this, including Tentacular attachments. Works on Xbox 360, Xbox One, PS3, PS4, PC and others. Click on the picture above to read the current draft of instructions to find out more. Should be in the OneSwitch.org.uk Accessible Gaming shop soon.