Well, I have worked on this bathroom till I am almost done with the entire thing! Got the sink painted, then decided to do the cabinets, got those done then decided I wanted to paint the walls,, got one coat on the walls and am thinking the floor might just have to be next, I know all of this is not going to hold up forever, but I am hoping it will, at least until we decide to remodel. Here is what I ended up with today. Here is a link that might be useful:

I am happy to report that the sink has been excised from the Corian! It's now on my DR table (which tends to be my overflow project room) and I spent a few hours last Saturday looking through the remnants at nearby stone yards here in southern Maine. Yikes - what a variation in price! In one very close to my home, I saw a remnant of imperial Danby Marble that was beautiful with the sink, as the soft tan in it was picking up the crackle finish in the sink. I made my vanity in the powder room from an antique bureau. I need a top about 23 x 43, and currently have a 3" back splash. That place quoted me $1050.+ :-( Current top, which I'd save and possibly use again someday, if I tire of the sink above. I went to a much smaller two man operation, and while they didn't have a remnant that I liked as well, their price, including templating and install, was approx. $400. :-) I left my name and they saw the faucet handle that I lugged around to hold up to the stone, so they know what I'm looking for. I'll check back with them from time to time to see what else they may have. I also saw this overmount sink in a painted wooden top in the link below, and if I can't find some stone that doesn't break the bank, I may go this route. I could also do some faux marble painting, in either something like the Imperial Danby or what I think the dark green marble is above - Empress Green? I think that a soft white with tan veins, along the line of what I did on this little antique table with gray veins below might be best in my home, though. Here is a link that might be useful: Another possibility - stained or painted wood

Excellent point Cat mom. Don't allow any carbon steel items to sit in a stainless sink either. If you have anything with even a little rust on it (including cast iron pans), allowing the carbon steel to contact stainless will contaminate the stainless with carbon and you will get rust. They make stainless steel wool which is excellent (I use it in my stainless pans if they need scrubbing). Also....avoid chlorine bleach on stainless. Stainless is attacked by chlorine and the result is pitting of the stainless.

I agree with trying barkeep's friend, if that doesn't work, acetone. check before you can use a scrubby like scotch brite, it might be considered too abrasive for fireclay. not sure. I use barkeep's friend and a plastic scrubby cloth (like this one) on my enamel cookware and it gets everything out without damaging it. be careful what you use magic erasers on as well. it's basically like super fine grit sandpaper. probably wouldn't damage that sink, but you'll want to be cautious what things you do use it for.