I am currently working on what is my second robot project. It is a simple biped. It relies heavily on balancing itself on one foot for walking. The feet are cut sheets of PVC and are giving me some slipping when it walks. I was wondering if anyone had some suggestions for something to give it a little more traction when it walks but with out making it too sticky. I am hoping to have some more details and pictures or video up next week if anyone needs more information. Thanks.