It works great for getting cups out of a high cupboard, digging out items from deep shelves and getting the ketchup from the top shelf of the refrigerator. This is another extremely simple idea that has been very practical and a great tool. With quad hands, things can be difficult to pickup easily let alone manipulate like car keys. It gives me an extra foot of reach if I'm parked in an awkward situation and can't reach the magnetic controls by hand. Its also very convenient when picking up small metal objects off of the floor like tacks and other things you don't want to run over.
Most pens have metal in the ball tip so they can be picked up easily too.
The Dixon ZTR mower comes hand-controlled from the factory and has a weight sensor in the seat that shuts down the blades if you leave the seat. I do use a belt for added safety. I searched for a long while to find a mower that was reasonable in price, good quality cut, safe and relatively easy to modify. The Dixon mower worked out great. I modified the arm rest on the left side and made it into a swivel for easier access.