Ah the shitty twist locks, the ones that came in padlock form were ridiculously unsecure. Some of them you used to smack the back of with something kinda rubberised (even a shoe would do sometimes) and bam its popped open. If that didn't work, pull outwards on the dial as you turned it around and you would feel the resistance change as you reached the correct value, of that still didn't work, tug town wards on whole lock and the resistance should change when you hit correct value. Never found one that didn't give up its secrets by that point. The standard combination locks are also vulnerable to the tugging approach.
Great, just great... You going to tell them how to hotwire a car? No? Well then it's easy guys with my Grandads old Valiant Charger you just need some jumper leads, Connect one end of them straight to the battery and the other to the Starter motor. Not as easy with new cars, I tried it and I fried all the computers... - - - Updated - - - They look great, Ask Gabester if he will use them on any of his projects, The worst thing that could happen is if he says 'No'. Good looking wheels though.