Here's a way to "zombie" up your Christmas tree....
How about a set of Zombie Christmas Ornaments?
Cute set of eight figures, about 3" high. $34.95 + shipping at Amazon.com
But even better, some will say - why not a Darryl figure ornament from The Walking Dead?
The Walking Dead Daryl Dixon & Crossbow Christmas Tree Ornament - $12.99 + shipping. (It doesn't give a size though it is probably similar to the others.)