Ryan Sinclair's psychic paper
From Tardis Wiki, the free Doctor Who reference
The Thirteenth Doctor gave a piece of psychic paper to Ryan Sinclair as a parting gift. When Ryan and Graham O'Brien learned about rumours of a troll invasion in Finland and gravel creatures in Korea they decided to eventually investigate that. Graham and Ryan were planning to use their psychic papers as they "[would] get [them] anywhere". (TV: Revolution of the Daleks)
