I am available to demo Malifaux at nearly any time if asked in advance - preferred location is the Outlands gaming basement, but it is also possible to get a game going at Work-Work if you feel like having a pint while playing.
On Tuesdays Wartrond has its club night at the Outlands gaming basement, I will be there pretty much every time, as will other players, so this is the best time to ask for a demo on the fly.
I can also demo Through the Breach, however, this requires some preparation so I need at least a week's notice.