The shikishis are done in normal autograph lines, 
and you have to provide your own shikishi.  Most 
people in the lines have DVDs, posters, or other 
merchandise to get signed, we're the only group 
I've seen who actually brought Shikishis to get 
signed.  The ones gotten through the charity 
auction, the shikishi's provided by the Con.  You 
can probably buy those through Japanese book 
stores and stationary stores.  Hope this helps.  
^_^

-ix