Our team's thinking of having a minibot with two plastic clips (like the bottom spring on an umbrella
http://www.umbrellaman.co.uk/UserFil...n-Umbrella.jpg ) that would both have a curved side towards the pole, and then would maybe be attached to some PVC so the robot could lock on. However, having looked at the rules some more, I think it would be hard to make them/have them work without using springs. If anyone knows what I'm talking about, do you have any ideas?