it could be usefull for making say, a doors top if you have a cupboard that tend to bump something every time you use it. or a cabinet knob for that one you always bump your head on.
or if you have a slippery knife handle.
so theres lots of things it could fix without the silicon beind a problem.
but i just had a thought about that plastigrip stuff you dip things in to coat. you could dip a dishrack in it to keep plates from rattling and chipping? or not.