Polybius: The "ghost" arcade machine

[Furbeh]

ispensing something cool, like a toy sword, plastic egg, basketball, etc. (this way there'll actually be an incentive to risk it for bored assistants)

Those items aren't that good of an incentive, since you can get most of those items quite easily. Strange relic possibly? championship belt? Bottle of Superglue? Geromy's jumpsuit? Fedora Hat? How about add a few cosmetic items from the admin's spawn menu? Supposedly the list of items are huge, and most never are rarely touched.