Vocation Brisbane's Heart of Mercy recently featured in The Catholic Leader:

Individuals searching for answers to their future can clip a padlock to the giant heart sculpture as a sign of prayer and discernment for their vocation.
Vocation Brisbane officer Patrick Ransom said the sculpture was also a practical way to consider God’s merciful heart in the jubilee Year of Mercy.
“During this Year of Mercy, Pope Francis encourages us to encounter the Mercy of God,” he said.
“The sculpture itself serves as a visual reminder of the merciful Sacred Heart of Jesus, standing visible to church-goers and passers-by alike.

You can read the rest of The Catholic Leader article here. 

Vocation Brisbane is inviting all people to mark the commitments they are making by attaching a lock to the Heart of Mercy, as a reflection of the call to be merciful like the Father. Heart Padlocks and a simple prayer ritual are available from St Stephen's Cathedral office or the Vocation Brisbane office. Read more about the Heart of Mercy and ritual here.