Check this ebay seller out. He/she is selling signed guitars with facsimile signatures.
Looks like an easy way to pass off forgeries.
http://www.ebay.com/sch/jflautographs2012/m.html?item=261107242380&...
People have actually purchased them.
I added photos from his auctions for a Beatles guitar and a Bon Jovi guitar (the Bon Jovi looks horrible btw).
What do you think?