What Is It? game 218

It's once again time for our collaboration with the always amusing What Is It? Blog. Can you guess what the pictured item is? Can you make up something interesting?

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 more clues, check out the What Is It? Blog. And good luck!

Update: the pictured object is a Pro Pitch Gauge, made by The Classic Company, for measuring the angles in the holes of bowling balls. Steve Pauk had the right answer with the very first comment! However, he did not select a t-shirt. StilesJM wins the prize for the funniest answer: Phrenology gauge used by sororities, applied to the cranial midline of a prospective member to determine how much of a pitch she really is. That wins a t-shirt! See the answers to all this week's mystery items at the What Is It? blog.