play.canvasmc.net

play.CanvasMC.net | A superflat concrete block canvas that never resets, on which you can paint.

Upon spawning in you are given several colours to choose from that you can draw pixel art and anything really else that you want to with, the canvas will never reset and has a world border at 30 million blocks out each way so there's lots of space to draw and make your mark. You can have a look at canvasmc.net/map to see the live server map updating in real time.