I invented a release planning game many years ago and I have used it in training quite a few times. Then Eduardo Meira Peres invented a much simpler version.
Teams must use sprints to recreate the alphabet after society forgot how to spell words. The game covers concepts like sprints, velocity and adaptive planning in a very simple way.
I am using the game again in some courses so I have simplified the game a little to focus only on velocity, dealing with change and adaptive planning.
I have attached the instructions for both the participants and the trainer – give it a go. It is free and its quick and easy to use in a class or workshop.