Use a 2d cubemap, it gives the best, closest effect to real cartoon shading in Blitz3d, but the shading won't react to light sources (so you need to plan your environment lighting carefully).
As far as I know, there isn't a decent way to outline a mesh. The "colour black and flip" approach that has been mentioned by other people looks awful, quite frankly. The lines look dirty and ragged, and they are affected by perspective and their distance from the camera too. This method also doubles your polygon count. Also, the method only works semi-reasonably with very basic models (I'm talking about things like low-poly cars or tanks, or primitive shapes like spheres, cubes, etc.) the more complicated the model, the worse it looks, generally speaking.
As far as I know, there isn't a decent way to outline a mesh. The "colour black and flip" approach that has been mentioned by other people looks awful, quite frankly. The lines look dirty and ragged, and they are affected by perspective and their distance from the camera too. This method also doubles your polygon count. Also, the method only works semi-reasonably with very basic models (I'm talking about things like low-poly cars or tanks, or primitive shapes like spheres, cubes, etc.) the more complicated the model, the worse it looks, generally speaking.