Astute Graphics make the most amazing set of Adobe Illustrator plug ins adding all sorts of really useful functionality. There latest addition is ColliderScribe2 and it is an absolute delight!

For me, the best feature is the Space Fill. It lets you fill aa area with a shape or set of shapes and easily multiply and randomise the size and position of the shapes. In no time at all I was able to make these randomised patterns which will be great for decorating future models.. Nice work Astute Graphics!