I have been asked to do a road kill cake for a 40th birthday. I'm at a loss for what to do. Anyone have any ideas or make one in the past?

I just made a possum cake-it is in my pics if you want to see it-but it wasn't actually roadkill. You could do something similar to it only lay the possum out flat and put tire treads on it. If you do a search on here then there are a few to look at for inspiration. Good luck!

Here is a link from Oriental Trading. It's a picture of their roadkill candies for halloween. Maybe they will give you an idea of a way to go.
http://www.orientaltrading.com/ui/browse/processRequest.do?requestURI=processProductsCatalog&sku=25/5275&tabId=6

a menu to inspire you:

http://www.road-kill-cafe.com/roadkill.html

and a picture:

http://www.foodbanknega.org/images/graphics/road_kill_buzzard.gif ( could do 2 vultures looking at some road kill. says one to the other: "A little rubbery if you ask me!"

and another

http://z.hubpages.com/u/839056_f520.jpg (I'd add snout out the other end)

and on a different vein (or is it lane?)

http://2.bp.blogspot.com/_swNDDpdq7dk/SYmYrJu6tXI/AAAAAAAAAO0/o9kO7y2fXpQ/s320/RoadkillCafe.jpg

Yay! Doug's back!! Your ideas rock! Love the vultures.....