wheel locks

I am looking for wheel locks for my ralley wheels. Is there any recommendation? These would have to be acorn style locks. or is this a waste of time and money, cause all I see are cheap locks, that can be busted easily.
I have a set of 15" LBP wheels, I think they are for Fords, would there be a problem using them. I think something of a center registry?

thanks in advance

Jerry