The Diadem Of Ravenclaw Wand
Chapter 29: The Lost Diadem
The most famous unique Ravenclaw of the series, however, , with her devotion to the Quibbler and her one of a kind fashion sense.
Xenophilius Lovegood tried to recreate it, but with, um, mixed results.
We don't have to tell them it's a Horcrux.