I'm looking for a mid-sized (16x16, 20x20 ish) black plate for mounting on a wall. It can be a regular plate or baseplate since what I am mounting it on is not Lego and it doesn't need to fit into studs underneath.
So far I have only found this piece but no-one seems to sell it in black
http://alpha.bricklink.com/pages/clone/catalogitem.page?P=91405
Are there other pieces I should consider?