Appaently at the Wonder Festival held on Feb. 19th in 2006. A debut figurine of Shushou was on display there: http://blog-imgs-13.fc2.com/u/n/d/underbidder/WF2006_02.jpg
It was in the form of one of the cover illustrations to Fuyumi's novel.
More information regaring the figurine can be found here: http://underbidder.blog43.fc2.com/blog-entry-27.html#