A friend at work ended up with someone's old component-level kit and among the various ICs in the kit were a bunch of Intel 80186 processors. He let me snag one.
They essentially didn't use them in PCs. They contained a bunch of stuff that normally was in the support chipset, so there were some compatibility problems in some areas. It's in a 68 pin package, and looks like the one on the wikipedia article about them.