Carlito's on Quinpool Road has Olympic Spirit cupcakes with buttercream icing. You can get cute ones with the Olympic rings made in icing, or a patriotic maple-leaf sugar candy. They're tiny treats, about the size of a shotputter's thumb.
Totally off-topic and unappetizing, I watched the women's marathon last night and saw my first puke fest, by the Romanian Constantina Tomescu-Dita, who had time to "relieve herself" and still win large. That's a hardcore event, especially watching the Japanese runner, who is a world champ, but was seriously injured and kept running even though there was no way in hell she'd win. Crying in agony, she kept going. Someone get the lady a medal, already.