We didn't say we were making this easy

good comment on the "vocal <-> Christmas message" thing.
On the other end I could add that there is a LOT of instrumental only versions of christmas songs out there that could serve as inspiration.
no rule said you can't try new stuff.
No rule said it has to be only guitar.
no rule said you can't experiment with the genre.
what woudl happen if Hendrix felt like a reindeer or Megadeth took a shot at little drummer boy?
What would happen if Rodrigo & Gabriela made "silent night" feel a lot more Spanish?
And yes, keep an eye out for some cool prizes
