Drapple

Drapple is the cargo ship between Draco Malfoy and a green apple from the Harry Potter series.

Canon
In Harry Potter and the Prisoner of Azkaban, Draco is seen holding a green apple during their first class with Hagrid. This is the first sighting of Draco with an apple.

Later, in Harry Potter and the Half-Blood Prince, Draco puts a green apple in the vanishing cabinet. The apple is transported to Borgin and Burkes, and then sent back to Draco, with a bite taken out. Then, he rubs it fondly.

Fanon
Drapple is the most popular cargoship in the Harry Potter fandom, as well as one of the most popular ships for Draco.

Some fans believe that Astoria Greengrass, Draco's wife, is a human form of the apple. Her first name starts with 'A' because she was an apple and her last name is 'Green'grass because she was green. As well, she wears a green dress, further proof of her being a green apple.

Fandom
AO3