Here is the guy with his truck: The Flying Dream
Here is what I bought from they guy.
Here is the exit: Eujiro 1-ga Exit 6
I buy them from a truck outside Eujiro 1-ga exit 6.
There is a guy that is there on Monday, Wednesday and Friday in the evenings and he has lots of cool Japanese toys. He's got a bubble wrap simulator, rubber chickens, Mario and Luigi memorabilies, and my favorite: the edamame phone bling. When you squeeze the pod, a little bean with a face pops up. So Cool!