Thanks for the comments, much appreciated. Love yours Johnar, genuinely laughed at the end. Very nice domino effect, great environment, excellent materials usage and love the cartoon style. I didn't actually use any figures, all the animation was keyframed in scene mode. I didn't use a physics engine so the physics is a bit off in places (particularly the ball being thrown up and when it falls in the cup). This is one of the things I would have fixed with more time, I usually like to run a series of short section renders to test the motion but had to fast track the process for this. At some stage I would like to port this into Carrara for re-texturing and re-rendering, and making use of the physics engine, but it will probably never happen!
PS: I do remember Mouse Trap well, it was big favorite when I was a kid (before video games and home computers!) and probably contributed to my love of complex mechanical devices like steam engines, cars, etc., the magic of cause and effect.