I thought this was freaking awesome last year, but a Giant Tentacle Monster absolutely tops the Epic Halloween Decorations charts. In this Instructable by username flaming_pele, you’ll see step by step how to make your own Giant Tentacle Monster. There’s a supply list and several pictures, though you will need some of your own ingenuity and creativity to make it work for your own yard. However, the core idea is solid, and the result is TERROR-fic! (I couldn’t help myself.) What are your DIY Halloween decorating plans this year?