I am almost finished with the decorations for the worship rally/music falls area. We made the rocks out of styrofoam and brown paper, the waterfall is blue paper covered with a clear plastic drop cloth I got from the dollar store. I still have to finish some rock on one side and put up the Outrigger Island Logo and add a few more plants.http://s302.photobucket.com/albums/nn116/lhogan1322/
I used 4ft by 8 foot sheets of 1 inch strofoam, cut the top in kind of a mountain shape using a hot knife. The middle 2 sheets were cut also to have the waterfall. I then covered with brown paper we had wadded up. I used brown and black spray paint to highlight them. The waterfall is just sky blue paper covered with a clear plastic drop cloth. We added some blue tulle over top of that. It was actually pretty simple to do. It looks even better now that it is complete. I'll have to post a new picture soon.