Wow, I am on a roll. I found Mug and A&W rootbeer in cans in Cambridge. Not much help for anyone else really, but it was in a small Chinese food place on Mill Road.
Also, I found Barilla pasta sauce with black and green olives. I have always found sauces to be not very tasty in the U.S. or in the U.K. but I love the Barilla sauces. They are so good with lots of pieces.