The initial series of Vatican euro coins featured an effigy of Pope John Paul II. They were issued only in collector sets and bore an extreme markup with the 2002 collector set costing well over a thousand euro.

Following the death of Pope John Paul II in April 2005, the Vatican issued special coins during the period of Sede vacante depicting the emblem of the Apostolic Chamber (i.e. two crossed keys beneath an umbraculum, or umbrella) and the coat of arms of the Camerlengo of the Holy Roman Church, at the time Cardinal Eduardo Martínez Somalo.

When the new pope was elected, the third series of Vatican euro coins were issued on 27 April 2006 and feature the effigy of Pope Benedict XVI. The coins carry an inscription "Città del Vaticano" and the twelve stars of Europe. The details of this design are published in the Official Journal of the European Union.
http://en.wikipedia.org/wiki/Vatican_euro_coins

15 Knowing their hypocrisy he said to them, “Why are you testing me? Bring me a denarius to look at.”
16 They brought one to him and he said to them, “Whose image and inscription is this?” They replied to him, “Caesar’s.”
17 So Jesus said to them, “Repay to Caesar what belongs to Caesar and to God what belongs to God.” They were utterly amazed at him.
Mark 12:15-17