You are able to create planets using fractals by simply applying all the talked about methods to a curved surface. Using fractals to create planets is an ideal method. The reason for this idealism is that you don't have to create more detail the closer you get to the planet. The fractals take care of adding more detail the closer you get to the planets. So you could do a fly-over of a fractal planet without doing much work.

You can use fractals to create craters by using fractals and subtracting circular shapes from them. It has been shown that this creates some rather realistic craters with some manipulation of the fractals.

You can represent some forms of fungi and bacteria through the use of fractals. The reason for this is that some fungi and bacteria have the property of self-similarity. Because of this it is possible to recreate them using some type of fractal