Trouble has produced a chocolate and vanilla milk stout as a collaboration with Coisbo. Called Coalition, it's mostly destined for Denmark but there's a cask on at The Black Sheep at the moment. It's really good: lots a chocolate milk luxury. They had lost the badge when I was in earlier so you may need to ask for it.
I noticed next to it there was a handpump badged Brehon Oatmeal Stout. I didn't try it, but as far as I know that's new too.
And for the southsiders, Leann Folláin is currently on cask in Gasworks.