What Is It? Game 55

Today's collaboration with What is it? blog brings us this gruesome looking object. If you can guess what it is, there's a free Neatorama T-shirt in it for you.

Contest rules are easy as pie: place your guess in the comment section, one guess per comment, please. You can submit as many as you'd like. Please post no URL - let others play. The first correct guess will win the T-shirt (old design), but if no one guessed right, then the funniest one will win instead.

Good luck! For more clues and pics, check out What is it? blog.

Update 3/7/08 - great guesses, guys! Here's the answer:

These were placed onto the head of a calf when they wanted it to stop nursing on the cow, the cow would get poked by the spikes and push the calf away, patent number 1,882,232. An easier solution would be to put them in separate pens, but apparently that wasn't always an option.

Congrats to kusito #11 who got it right!