This solar tracking robot uses RC servos, light sensors, and a Mini Maestro to find the sun and point a solar panel directly at it.

Featured link: http://www.youtube.com/watch?v=4abMkyPoGcs

This robot uses a Wixel as the controller and is driven by stepper motors. Its source code is available in a forum post.

Featured link: http://forum.pololu.com/viewtopic.php?p=28678#p28678

This Arduino-controlled robot commands the Rover 5 chassis and uses a LSM303DLH 3D Compass and Accelerometer Carrier with Voltage Regulators to determine which direction to go. The caterpillar treads were replaced with the Wild Thumper wheels.

Featured link: http://www.youtube.com/watch?v=43zqBtQyBF0

This 3-servo hexapod has a Wixel for its brains and is controlled remotely by an Arbotix Commander modified to use a Wixel.

Featured link: http://forum.pololu.com/viewtopic.php?p=28482#p28482

This modified Gaucho Superpower taps directly into the jrk 21v3 that powers the Torxis servo used to steer with remote control. Disclaimer: our products are not recommended for applications where the malfunction of the product could cause injury or damage.

Featured link: http://forum.modifiedpowerwheels.com/viewtopic.php?f=19&t=4645

In this video a MinIMU-9 v2 is connected to an Arduino Uno to interact in real time with 3ds Max. For source code, 3ds Max files, and step-by-step instructions, you can download a 3ds Max MinIMU-9 tutorial (5MB zip).

Featured link: http://www.youtube.com/watch?v=PyUgsx3SuyE

This laser-cut, remote-controlled balancing robot uses a dual VNH5019 motor driver and a pair of Pololu wheels.

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

A Micro Maestro controls the faceplate on this Iron Man helmet, and the spare channels will eventually be configured to turn the lights on in the eyes.

Featured link: http://www.youtube.com/watch?v=qQU6xxdqR3Y

From the Pololu Forum: this robot based on a 3pi also contains a Baby Orangutan that is wirelessly programmed using a pair of Wixels.

Featured link: http://forum.pololu.com/viewtopic.php?p=27590#p27590

This head tracking project uses a MinIMU-9 v2 and an Arduino to mimic the movement of a person in a computer-generated model.

Featured link: http://www.youtube.com/watch?v=j5f9RDcgois