While we were in Tokyo, we were able to go to 2 antique flea markets/shows. You can't really call them shows as they are outside, but they do have mostly antiques and collectables. I guess there are a few proper shows in January. Anyhow, what is really interesting is that they are mostly set up on the grounds of shrines. Why? I don't know. There are 1 or 2 in Tokyo every weekend, and some also is Kyoto, etc.
I had this, called parent and child. It is chicken and an egg cooked with some really yummy onion flavored rice. Delish! Came with miso soup and a bit of pickled cabbage and tea. All for 8 bucks if I recall. Very good for the most expensive city on earth.