Ticket

When Iris Wildthyme and Panda arrived at a warehouse full of double decker buses, a ghost of a ticket inspector tried to kill Panda by drowning him in tickets produced by ticket machines. (PROSE: Just the Ticket)

In August 1998, Helen Sinclair bought a return ticket from Calcot to London. (AUDIO: Absent Friends)

Toshiko Sato gave Owen Harper a ticket to see Faust at the Cardiff Bay Millennium Hall with her. However, he threw it in the bin and Ianto Jones took it instead. (AUDIO: Dinner and a Show)

In March 2005, Chris Martin watched the Ninth Doctor get kicked off a train as his season ticket wasn't valid until 2009. (PROSE: Have You Seen This Man?)

Information from invalid sources
The Pod was a music festival in Pete's World that was different from all others, as it was broadcast directly to Cybus EarPods and didn't involve "tickets, tents, or dodgy toilets". (NOTVALID: The Pod)