If any of you are going to be in the Kanto area on Sunday December 1st, Tobu is having their open day at the Minami-Kurahashi Depot, a 20 minute walk from Minami-Kurahashi Station on the Tobu Nikko Line. There's also a free shuttle bus. It's from 10 AM to 3:30 PM with the last entry at 3 PM.
Among other points listed on the info page, they'll be selling railway goods and there will be a conversation between a railway writer named Shie and the honorary curator of the Tobu Museum, possibly named Hanagami.
http://www.tobu.co.jp/news/2013/1101/fanfesta.html