What do you call a reindeer who's an excellent decorator?

Deer-ator

Why did the scarecrow win an award at the Christmas party?

Because he was outstanding in his field of holiday cheer

Why did Santa's elves start a North Pole wellness program?

Because they needed to work through some Claus-trophobic issues.

Why was the Christmas tree in a good mood?

Because it was branching out and having a tree-mendous holiday season