What Is It? game 210

Here it is, time for our collaboration with the always amusing What Is It? Blog. Tell us what this thing is, if you know. If you don't, make a wild guess!

Place your guess in the comment section below. One guess per comment, please, though you can enter as many as you'd like. Post no URLs or weblinks, as doing so will forfeit your entry. Two winners: the first correct guess and the funniest (albeit ultimately wrong) guess will win T-shirt from the NeatoShop.

Please write your T-shirt selection alongside your guess. If you don't include a selection, you forfeit the prize, okay? May we suggest the Science T-Shirt, Funny T-Shirt and Artist-Designed T-Shirts?

For another, closer view, check out the What Is It? Blog. Have fun and good luck!

Update: the object in question is a wolf collar for protecting a dog from attack by wolves, used mostly in Europe. Rastercat was the first with the right answer, but did not select a shirt. Cricket had the funniest answer: it's the Dugger family's marshmallow roaster! That one deserves a t-shirt from the NeatoShop. You'll find the answers for all of this week's mystery items at the What Is It? blog.