I've had the TSC "Deluxe Wheel Spinner" on each of my four tractors for several years. Highly recommend it. $15. It's branded as County Line for TSC, but made by SpeeCo. Accommodates different thicknesses of steering wheels. As others have said, I wouldn't be without a spinner on a CUT. Amazing how much it increases productivity. Especially with quick loader and grapple work, or maneuvering in tight places.
Way back in the mid 70's I scrounged up a spinner for my 52 Chevy, if I recall the steering wheel was too skinny and it wouldn't tighten properly so I didn't use it. It somehow managed to stay with me through the intervening years like a lot of interesting etcetera is wont to, and found a home on my forklift. It was old when I got it, probably from the 60's, it has a couple of dice that rattle around under a (formerly) clear dome, like this example.