Objects
Broomstick
A broomstick is the ordinary flying mount of the wizarding world, used for travel, games, and Quidditch. Harry’s first school broom is a Nimbus Two Thousand, earned when Professor McGonagall sees him catch Neville’s Remembrall. Later brooms in the story include the school Clean Sweep and the Firebolt.

First mention
Harry Potter and the Philosopher's StoneChapter: Diagon Alley
The shop windows of Diagon Alley show brooms for sale while Hagrid takes Harry for his school supplies. Harry flies a school broom in the first flying lesson, in The Midnight Duel.