Viking boat: Saved boat from Thailand Trek and turned it into a viking ship. Mast is PVC pipe wedged firmly into a shoe box, by surrounding it with lots of Styrofoam scraps taped together, hole cut into lid of shoe box for mast to go through lid, then box duct taped onto center of boat. Ironing board covered by tarp makes perfect pedestal. (Please forgive the dangling shield. Corrected before VBS began, but did not notice while taking picture.)
Our stage: We used the pre-made backdrop. We made the 3-D buildings out of corrugated cardboard boxes, painted, then pinned cut paper onto the buildings to give the illusion of doors & windows. Much easier and faster than trying to paint the doors & windows on.