VERY simple fractal generator

Hi, I've been trawling online for ages now and all I can find is really complicated fractal generators. I'm looking for something for a class of seven-year-olds where I can use fractals to represent their age. So I just want something where I can put in their age in days and a fractal or pattern will be generated. Any ideas?
I am mostly using a Mac but do have access to a PC.

 

http://fractron9000.sourceforge.net/

Try the link above. Its for a PC and its dead easy to use with a graphical interface and fast rendering. Putting in age as a number is not quite so simple. I would try putting in years and months as legs or elements, then play with the interface to get something pleasing.

I use this software to create effects and brushes for photoshop. When I'm not working, its just great to doodle with. Its free ware, so give it a go.
JD