What Is It? game 245

W00t! It's time for another collaboration with the always-excellent What Is It? Blog. Can you guess what this strange object is used for?

Place your guess in the comment section. One guess per comment, though you can enter as many guesses as you'd like. Please do not post any web link or URL - doing so will void your entry. You have until the answer is revealed on the What Is It? Blog tomorrow.

Two prizes: the first correct guess and the funniest yet wrong one will win a T-Shirt from the NeatoShop.

IMPORTANT: Please write your prize selection alongside your guess, so visit the NeatoShop and take a look around. If you don't write your prize selection, then you don't get the prize. I think you'll like the selection of funny t-shirts and science t-shirts -or even t-shirts of your favorite blogs and websites.

For more clues, go to What Is It? Blog. Good luck!

Update: the pictured object is an exact replica demonstration model of the original Telstar satellite, launched in 1962. The real satellite was only about twice as big. Craig Clayton knew that, and wins a t-shirt from the NeatoShop! The funniest answer came from The Professor, who won a t-shirt when he said, "This is the Death Star's lesser known cousin, the Mildly-Irritating Toothache Star." There were a lot of other great guesses; you should read them all. See the answers to all this week's mystery items at the What Is It? blog. And thanks for playing along!