Since I have just started on my collection of snakes again, I have started to breed my own mice/rats. As for how to present them live, I dissorient them either by spinning them, making the mouse dizzy or dropping it the feeding tub from about chest high. My Ball Pythons are very Aggressive eaters, So when put in the feeding tubs, they know what is coming and sit ready in the corner. I have tongs or a pencil to keep the teeth away from the snake