Using black crepe streamers, I connected four streamers together on the ceiling in the corner and fanned them out down to the floor where I tacked them to the carpet. I attached short strips of streamer horizontally between the long vertical streamers to look like a spider web. At the top of the "web", I attached a cluster of red and blue balloons.  On the large picture window, I made a web-like design from red and blue streamers and placed a Spider-man poster in the center. The window was framed with red and blue balloons. On a large piece of white plastic tablecloth, I drew a large spider web and hung it on the wall(this was to be used for a game). I tied thread to the arm of one of my son's Spider-man action figures and hung it from the center light fixture above the table.