Soundown makes great isolation mounts. My trawler came with their isolators on the engine and gear. But the also make mounts to isolate other vibrations. My genset sound shield was isolate from the stringers with their mounts. And both the engine and genset water lift mufflers are isolated with their mounts. Of the four sets on the boat, none are the same size which speaks to the large range of sizes they offer. Here is a link with the second image being the ones on my water lift muffler.
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters