Found this in the yard. Probably the neighbor's. Anyone know what it is and what it's used for?

Hedge apples can be sliced and dried for use in crafting and DIY projects. Creative individuals often incorporate dried slices into homemade ornaments, potpourri, and other decorative items. Their unique appearance and texture make them an intriguing choice for crafting enthusiasts.
Wildlife Attraction:
Hedge apples can also serve as wildlife attractants. Some animals, such as squirrels and deer, may consume the fruit when other food sources are scarce. If you have a passion for wildlife observation, placing hedge apples in your yard can provide opportunities to observe these creatures up close.