As long as I'm asking for help on another issue with our kitchen sinks, I'd appreciate your advice about noise, too. We have hammered copper sinks (twin basin main sink + a veg/prep sink) in the kitchen and butler's pantry. The little ones are fine (probably because they don't get much use) but the main sink is very noisy. I tried a sink mat (pebble textured) but stuff got caught in it and it was hard to clean. I haven't found a sink rack/grid for copper sinks like the one I used to have in a previous home's stainless sink. Is there such a thing? Also, I'm wondering if it's feasible to insulate beneath the sink, and if so - how? Would spray foam adhere to the underside of the copper sink and help reduce the clanging sounds when dishes and pots are washed? Are there any other ways to reduce the noise?

Thanks!