Great list of ideas for group prayer. You can read the whole thing (plus descriptions) at Darren's blog.
BIRTHDAY PRAYER BOARD
PRAYERS IN A HAT
THE PEOPLE CROSS
Ask each young person and leader to write the name of a friend, work colleague or family member they wish to pray for, on a piece of paper or card. The young people then place the papers on the floor in the shape of a large cross. The group then stands in a circle around the cross and pray for the person they named. Invite them to softly speak out their individual prayers together. Encourage them to pray,
* For any needs that each friend may have
* That each friend will become more open to God
* That each friend will become a follower of Jesus
* That God would use you to reach your friends.
NORTH, SOUTH, EAST, WEST
Ask the group to face each of these directions in turn and then pray together in silence, or out loud, for any specific needs, personal, individual, local, national, global in that direction. Find out where the missionaries from your church, or those you support, are working and pray for them as you face the direction of their mission field. Bring a compass to the meeting!
PRAYER MAPS (1)
Place a large map of your nation at the centre of the room. Read 1 Timothy 2: 1-4 and invite the young people to get into small groups of 3 or 4 and encourage them to pray for those in authority. Pray for your government and leaders. Pray for wisdom as they govern. Pray that peace and justice might rule in their lives.
Ask the young people to quietly form new small groups to pray for the church in your nation. Pray for the church to be bold in ‘speaking the truth in love’ and pray for revival. Pray for your church to have a greater impact and witness in your community.
PRAYER MAPS (2)
Place a large map or globe of the world in the centre of the room. Around the map place photographs and newspaper articles of situations around the world which need prayer and intercession. Highlight nations where you know missionaries and Christian ministries working to reach people with the Gospel. If you wish, ask members of the group to research certain nations and bring prayer requests from the information they have gathered.
CANDLE IN THE DARK
Then in the silence, encourage the young people to pray for the suffering church. For isolated and persecuted believers, for God’s grace and strength to fill their lives, for justice, and for the person or family highlighted in your illustration.