Here are 2 claw prize machines.
They're not full of Sonic prizes, but they are Sonic & Sega branded. Look at the top for the logo, and modern Sonic. These are in the USA, and likely somewhat older. Sega does make all kinds of arcade /amusement equipment both Sonic and unrelated, so these make sense. (It is too bad though, that there ar not Sonic stuffed animals to win in them) The on in the background is empty, so it is turned off. These have branding on all 3 outward facing sides. This is located in a Walmart in Oklahoma in 2017. 

• Photo discovered by @JapanAnimePosters Instagram Photo discovered by @JapanAnimePosters Instagram
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This is what happens when a machine like the one above is taken apart. You get UFO / claw machine pieces to re-use. In this case, it's from a Japanese machine that got retired. They went a step further than the outward branded normal UFO catchers, and added Sonic & some little stars in a pink triangle to the control part of the 'arm'. You can see the circuit boards & things in there that would control the 3-claw dangly gripper thing. Isn't this an interesting sight to see, all by itself & with Sonic on it too?