Seventh Doctor's jumper
From Tardis Wiki, the free Doctor Who reference
The Seventh Doctor wore a jumper covered in question marks. (TV: Time and the Rani) By his own admission, the jumper was "silly". (AUDIO: Harvest of the Sycorax)
Following the Thirteenth Doctor's forced regeneration, the jumper was among the items of clothing worn by the Spy Master during his brief stint as "the Doctor". (TV: The Power of the Doctor)