Buy a Micro Line Following Robot Kit
http://www.picokit.com/
http://stores.ebay.com.au/PicoKit
PicoTron is a Micro Line Following Robot DIY self-assembly kit from www.picokit.com
This robot could be customized to run a maze using MPLAB and our PicoFlow USB PIC Programmer
Buy a Pre-Programmed PIC or else program the supplied blank microchip with your own firmware using our PicoFlow USB programmer with supplied software.