Enhanced Spider Robot

Im always looking for a new project to do at my robotics workshop for kids. While spider robots are intriguing, almost all of them are either too complex involving 10+ servos or way over-budget for my workshop. In search for cheaper alternatives, I found this project: http://letsmakerobots.com/node/38744. Since this project appears to fit my budget range of $40-$60 and not too difficult (I think) for kids to work on, I decided to build a prototype.”