Our fractal art kit consists of neatly packaged parts that children can assemble to learn the basics of circuit design.  The toolkit also includes microcontrollers (ATtinies) that are programmed to allow sets of LED lights to blink at different rates.  Children can arrange the strings of lights so that the different levels of the fractal blink at different rates.  This provides another visual representation of self-similarity & the scaled nature of fractals.