Apologies if this has been posted before but there is a charity called Remap which consists of engineers who find innovative solutions to problems for disabled people. They will take disability aids and rework them for an individual to make life easier or, if necessary, invent a new aid. In my last job I used them often for amputees who were struggling with everyday life. If you google remap you will see what they do. The good news is that their services are free. Nothing is too much trouble for them and they are country wide.