Draw with colored sand
When you need to relax and abstract from the tedious work, turn to ThisIsSand — here you can simply contemplate the crumbling colored grains of sand. The colors change depending on the setting — either arbitrarily or taking into account the user's choice.
If you get used to it, work with layers and color, you can draw something more impressive than just mountains of different sizes. But let's be honest — most likely, you are unlikely to have enough for more than a couple of colored bumps.