Grilled Fishies
At the start of the season I think they only had sweet (red bean) fish. At the end of the season they also sold a savary vegetarian fish (modeled after their pancake.
Oden Stand
Oden is basically seafood/tofu/stuff on skewers served from a common broth - it's common to see in 7-11's. This stand was at the exit to a subway station. One piece (octopus wrapped in Tofu) was enough for David and Andrea to get a taste.