There's a bar-sized one near the intersection of Kensington and St. Peter's St. It has lots of colourful stickers on it.
They would include: Hashish: Mind chocolate; Work-free drug place and Thank you for pot smoking.
A requisite image of a cannabis leaf and a few iconographic punk rock stickers can also be found on it.
As an extra bonus, there's a weatherbeaten keyboard on top of it and a broken keyboard tray.
It comes in a lovely chocolate brown.
Hurry down: At a price like this, it won't last long! :)