It takes a bit of pinky dexterity to play the saxophone's lowest notes, and some kids struggle with it at first. My running joke is that they should "go to L.A. Fitness and use the pinky machine." This week, one kid's response to that was, "Wait--is that real?"
(I assured him that it wasn't...but if there actually were such a thing as a pinky machine, could you imagine the size of the weights? And the machine itself would be so small that it would have to be nailed down, lest someone take it home in their pocket.)