A bunch of materials are listed below. Spread the word. Let other Christians know that they can join you for weekly prayer. Be creative and have fun. God's not boring, so you shouldn't be either.
Prayer chains are an awesome way to crank up the power for a special outreach event.
Involve parents, teachers and churches in your community for extra power. You'll need a point man who will organize prayer for your ministry. Look for someone who has a rep for prayer. This student could begin other prayer groups on campus, while a parent, teacher, or youth minister could organize community prayer support. So don't go it alone.