Last week at our church, we set up a prayer space for 43 straight hours, where people could come and interact with God. Here's some images (some Photoshopped for effect) from the space.
As we entered the room, we were invited to take a piece of brown paper and write down all the burdens, worries, etc. that we were carrying and scrunch it into a ball. A large burlap cross was stretched the length of the room, and as we walked, we were able to open our hands and drop our "burdens" on the cross. As you can see, the floor is strewn with these papers. On the front wall is our "graffiti wall of worship".