Captain Price - A box of Montecristo cigars
We all know that Modern Warfare's Captain Price loves a good cigar, so this box of Montecristo cigars should go down a treat. With any luck they'll keep him so occupied that he won't randomly stab anyone at Christmas Dinner. Because when all is said and done, we all know that Price is only truly happy when he's killing someone.
Alternative present: Soap.