Incredulitas 4

From Tardis Wiki, the free Doctor Who reference

Incredulitas 4 was a rare metal that, when suspended, could be used to transport matter from one location to another.

Charles Abbott used a pen made of Incredulitas 4 to transport Sammy Jones to Antagonista. When the Twelfth Doctor saw the pen he realised that Abbott was an alien. (COMIC: Shock Horror)