Could it be any easier ?
Stop by Home Depot (or another hardware store, perhaps?) and pick up some pipe insulation. It comes in different thickness options - but is under 2 dollars for a 6 foot long piece! What a steal. You can wrap this around any handle that would help your student (or patient) access their environment. This could help with a student who has difficulty grasping smaller objects like the handle of a spoon, when self self-feeding. It already comes with a cut down the middle, so simply wrap around object of interest or need. You may need to wrap it with tape if a student finds it entertaining to remove.