The larger and more capable ride-ons are called Lawn Tractors if they are light duty, and Garden Tractors if they are slightly heavier-duty. There are miniature farm-type accessories available, though they tend to be somewhat ornamental compared with what you can do with a rake and a shovel. In the case of Garden Tractors, there may even be cute little ground-engaging implements such as harrows etc. A lot of damage is done to ride-on transmissions by people who attempt to use that stuff, but they often have a whole lot of fun, sort of like an adult version of a kid playing with a train set. No doubt our partners would call them "boys' toys".
