It's the contraption that the DJs used in the Flinstones era (Stone Age) so they could adjust the speed the little dinosaur would ran in order to spin the record.

It is connected to a dangling piece of vegetable or meat (depends on the dinosaur used), hidden under the turntable and used as bait. By altering the pitch it would hang further away or closer to the creature, provoking it to run faster or slower in order to catch its dinner, accordingly.

The Gravels SL-1200 MKII model, the best ever, used the fastest dinosaur, Dromiceiomimus, which was omnivorous thus being the superior turntable model. Unfortunately Bouldersonic has ceased its production after 3,5 million years of excellence.

Unicorn Poop Navy Men's XL

Fish Cleaver and Gutter.

I would guess the small round edge is for eyes or something?

Unicorn Poop
Men's XL Navy