Fenster writes:

If you are planning to write a book about something or someone falling from the sky be aware that the landscape is already littered with fallen objects and you might have a copyright problem.

The things that have already fallen from the sky:

People: Children, Girls, Boys, Men, Horsemen, Princes, Babies, Hanna, the Author

Animals: Owls, Penguins, Horses, Eagles, Fish, Turtles

Special beings: Angels, Fairies, Gods

Things that are supposed to stay up there: Clouds, Stars, the Sun

Food: Eggs, Marshmallows, Apples

Buildings: Towers, Schools

Intangibles: Words, Laughter

Watch Out: Poison

It looks like the following are not subject to copyright and it is suggested you pick from this list:

Deer

Frogs

Bananas

Brides

Cows

Televisions

Octopuses

Frozen Pork

Trump