This art installation by Matthew Richard uses 10 OctoBrite DEFILIPPI modules, 80 RGB LEDs, 40 servos, 7 servo controllers, and an Arduino.

Featured link: http://cargocollective.com/mrichard/Estrella-Intersects-the-Plane

Alex Louden has released an open-source template for custom 3pi expansion boards for use with the Eagle PCB design software. The picture shows an example expansion with an mbed microcontroller, Xbee, and accelerometers.

Featured link: http://alexlouden.com/2010/3pi-pcb-skeleton/

Forum user erik46 wrote up a document (523k pdf) showing how to read FrSky telemetry data and display it with a Baby Orangutan. The whole setup is small and light enough to clip on to an RC transmitter. For more information, see his forum post.

This simple obstacle-avoiding robot by forum user TomatoWire is based on the Maestro and uses continuous-rotation servos and distance sensors. The robot is programmed using the Maestro’s internal scripting language, without the need for an additional microcontroller.

Featured link: http://forum.pololu.com/viewtopic.php?f=2&t=2756

This instructable shows how to power an Arduino through the Pololu Pushbutton Power Switch and use the self-shutoff feature.

Featured link: http://www.instructables.com/id/Using-the-Pololu-Pushbutton-Power-Switch/

This module for RoboRealm provides an interface to the Pololu Maestro USB servo controllers, linking advanced video processing to RC servo motion control.

Featured link: http://www.roborealm.com/help/Pololu_Maestro.php

This replica of the famous Star Wars droid R2D2, built by Glenn Pipe, uses a Jrk USB motor controller for position control. The video below shows how Glenn uses the Jrk Configuration Utility to control and analyze his system, and his blog post has more information.

Featured link: http://astromech.wordpress.com/2010/02/05/adding-position-control-to-r2s-dome/

Patrick Hickey and Bradley Lord use a Pololu Micro Maestro for servo output and a Pololu 4 servo multiplexer to support manual control override in their model aircraft autopilot project.

Featured link: http://moreproductive.org/autopilot/

Customer Mark Goodson constructed this spooky animatronic skeleton using the Jrk USB Motor Controller. See the final result below:

Featured link: http://www.youtube.com/watch?v=wiimQNGnNBY

This beacon-chasing robot by Christopher Hazlett was built with our IR Beacon, an RP5 Tracked Chassis, and an Arduino.

23 Oct 2018 edit: You can find a video of it driving here and a GitHub page here.