Just sharing a eBay listing for some BIG VFDs on eBay.
Just ordered a lot of five for $73 including shipping. I have a few projects in mind. Now I just need to figure out how to make it work XD
More info on them at: Arduino Playground - Ncr4X20Vfd
eBay Listing:
http://www.ebay.com/itm/370573431880?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2648