>> At the very least dimpling, though an OXO handle type coating might hold up. Problem with that is the gasses produced if Johnny washes the dishes too hot. <<

True. Silicone sleeves would be a great choice: durable as squishy things go, high temperature resistance, great grip, and replaceable when they wear out.

>> You probably know the Bobbsey Twins then. <<

I know of them, though I'm not a fan.