This thread just serves to find out what chains either stateside or around the world offer something unusual or something not typically McDonalds (chicken mcnuggets, big mac).

While I was with my wife visitng TPE, there was actually a so-called "Rice burger" as one of their value meals. The burger bun is actually made out of individual rice. I thought it was quite interesting.

There are several Ocean City, MD McDonalds that offer crabmeat burgers. I wouldn't recommend them, it's probably 1/4 or even less real crabmeat.