Nothing to do with picaxe but being a fan of robotics I had to share this with all those that are interested. Sorry to the moderators if this is wrong but I just though it was very clever and just goes to show you what is out there.
http://www.youtube.com/watch?v=V4OsZROZGy0
http://www.youtube.com/watch?v=V4OsZROZGy0