I got a Black Candy Bar from playing Random, and I want to know how much it's worth.

there's a board for these types of question here, first of all.

second of all, the item is glitched and does not show up in shop search but usually goes from 30k to 60k. your best bet would be either putting it in auctions at 30k or going to the advertisement board and telling people to make offers on it.

There is also an achivement for feeding them to your pets.

Locking this, since it's a case of item glitch and not pricing.