Here's an unusual/uncommon item.
It was made for the Sega Saturn (which didn't end up that popular nor long lasting) which probably contributes to the uncommonness. It's a cleaning kit with a Sonic & Tails theme. It has the special disk you see there, which has tiny soft brushes underneath so that while it spins, the brushes clean the laser emitter of dust. Also included is a disk wiping pad that won't scratch, and a fluid that helps clean disks too.
Interesting note: it says that while you run the disk in the Saturn, you can "watch Sonic & Tails"--so it seems likely that it has some kind of short animation of somekind that plays while it cleans? (Do write in if you know what the disk shows for credit!)
Also notice how it's sort of going on 'wrong Tails' for the art...his glove bands have been moved & turned into blue bracelets somehow, he's got the tiny ears again & the wrong shoe type going. (The only thing they missed was setting him to brown...)