I was there too! I had a name badge on and everything. I was working the Obon Festival event and had to do my sketching when I could, which was about 24 hours before the rest of the sketchers showed up and after I had the venue set up.
Wasn't a lot, but it made me happy to do something. I'm the one that does signs. A Japanese American festival is a fabulous place to draw signs. The one on the left with the light blue background has something to do with one of the kids' games. The Gold Fish Game sign is definitely a kid game sign. The dark blue background one came from the front of the Japanese American Cultural Center. No idea what it says - hope it isn't "do not draw this sign..."