ArPee I First attempt at a car with rack and pinion steering and bumpers.
	ArPee II A better scaled rack and pinion steered car using angle sensors. Also has spring suspension.
	ArPee IV A rack and pinion steered car capable of negotiating its way around a track using a scanning ground-facing light sensor.
	Grabber II A grabber arm loosely based on the one on the RCX 1.5 box, but substantially more sturdy and versatile.
	N-JABS N-JABS is Not Just Another Brick Sorter. Uses different colours of light to distinguish between different colours of brick.
	Plotter A simple, but effective PC-controlled pen plotter.
	Light Seeker A tank which continuously seeks and tracks a light source using a light sensor mounted on a rotating "turret".
	Music Reader Reads a line of (slightly modified) sheet music.
	Joystick An old Atari jostick converted to use as a remote controller.