Create oversized your own DIY Spider Web with something your probably already have on hand, trash bags! I’m not usually a big fan of spiders or spiderwebs. But these oversized spider webs are one of my favorite DIY Halloween decorations. Put them in your windows, on your front door, over shutters. Any large space that needs some Halloween decor. DIY Spider Web Supplies Kitchen trash bags Scissors The only supplies you need to make these Spider Webs are trash bags and a pair of scissors.