Just spotted the upcoming Nostalgic 2 Days event this weekend in Yokohama on a minkara blog. It sure does look promising:

And in contrary of many western Nostalgic events not only the waxers are coming there, but also the tuners and zokushas will be present! Anyone wants to sponsor my last minute ticket? :P

You can find more information about this event here:
Nostalgic 2 days in Yokohama