Okay, you guys got my imagination going some.
Here’s one vinette I’ll be working on: The postman’s going to lose a leg and have his bag tattered, and the pit bull’s going to gain a broken chain, lose his lower jaw, and have a caved-in look to the side of his head...
Mega Miniatures DEAL-0484 Mail Man $1.43
http://freeboardgamesnow.com/mailman.aspx
DEAL-0231 Street Thugs Pit Bull $1.43
http://freeboardgamesnow.com/streetthugspitbull.aspx
I might end up using a zombie dog mini, in which case, I'll have to decay the postman to suit the decomp stage.
I might even make a similar diorama with a delivery man and a busted crate.
MEGA Miniatures DEAL-0472 Delivery Man #2 $1.43
http://freeboardgamesnow.com/deliveryman2.aspx
Here are some zombie dog candidates:
Mississinawa Zombie dogs can be bought separately here
http://www.missminiatures.com/cgi-bin/store/commerce.cgi?product=Zombie_dogs&cart_id=1279468651.166 for $2.00 ea.

I'm thinking get the pack, use one for the postman, and then use the rest for a feral pack to terrorize the neighbourhood.
When I find a good convict mini in a jumpsuit, I’ll give him a noose of bedsheet cloth strips.
Anyone got any ideas on how to "decay" a normal figure, human or animal with sculpt add-ons or paint (other than blood)? I know matting hair is good. Maybe there's a way to purposefully "pit" the metal with an acid, or perhaps a heated paper clip or blade to put holes and tears in cloth? How about painting scorch marks or seared flesh?
Anyone know of a zombie fig that has impressions of tire treads sculpted onto it? If not, how would you go about giving this 3-D effect?
Another idea I had was a "floater:" a really bloated human figure, partly nibbled by aquatic life.
It would be cool to find figs with obvious bite radii and/or sucker marks sculpted onto them.
Any suggestions?