Slytherin Quidditch team's Nimbus 2001 broomsticks

In 1992, Lucius Malfoy bought the entire Slytherin Quidditch team Nimbus 2001s. Draco Malfoy showed it to the Gryffindor Quidditch team, and Hermione, told him that nobody on the Gryffindor team had to buy their way in, causing Malfoy to call her Mudblood.

Appearances
Harry Potter and the Chamber of Secrets Harry Potter and the Chamber of Secrets (film) Harry Potter and the Prisoner of Azkaban Harry Potter and the Order of the Phoenix (presumably)