Based on the project in our book "Junkbots...", it's been re-featured in Make Magazine Volume 28 as a DIY article!
This is the Mousey project from the book Absolute Beginner's Guide to Robotics or from the MAKE magazine project.
Want to build the Solar Xylophone in Make Volume 12? This bundle will get you started on Rory Nugent's project.
The YDM musical robot has been featured all over the place, including Make Magazine 27. Along with the members of Let's Make Robots, we felt that a bundle of the electronic components you'd need to build it was in order.