MOTLO pendant

From Tardis Wiki, the free Doctor Who reference

A MOTLO pendant was a teleportation device used by the staff of the Museum of the Last Ones to get to the planets that the specimens were taken from. Once they arrived at their destination, the pendant could also be used to put the "last one" in suspended animation. However, this function only worked on the last of a species, any others would not be frozen. The pendant had the MOTLO logo (a picture of Hr'oln) on it. (PROSE: The Last Dodo)