I've taken a couple of lockpicking workshops. It was supremely rewarding when I successfully opened a lock using lockpicking tools. Here's a transparent padlock that shows you how the internal components work, making it easier to learn how to pick locks. It comes with 2 keys, but you need to buy the lockpicking tools separately. It's $(removed) on Amazon.
By the way, my friend John Park is going to be giving the mother of all lockpicking workshops at our upcoming Weekend of Wonder extravaganza on September 18-20 in Riverside, CA! Register here to join us.