The Parallax StampWorks Experimenter Kit is a comprehensive collection of everything you will need to learn about efficient embedded design. This is a great package for those who want ALL the accessories!
The Robotics with the BoE-Bot Parts Kit turns your Board of Education into a BoE-BOT Robot.
This board is a great starting platform for learning how to take advantage of the Propeller.
The Propeller Proto Board Accessory Kit includes all the parts necessary to connect VGA, keyboard, mouse and servos to the Propeller Proto Board.