Well, there's three on this list. http://www.ebay.com/sch/i.html?_trk...of&_nkw=Lincoln+no-S+proof&_sacat=0&_from=R40
I took a look at the completed auctions for 1990 no-S and there were several, including this Prestige set which has poor pictures but I am fairly sure the cent in the set has been replaced with a polished Philadelphia coin. http://www.ebay.com/itm/1990-PRESTI...D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557 (If I am right then he probably got away with it because the buyer gave him positive feedback.)