18. Menacing Ghost Mob
DIY Found From: grimhollowhaunt
If you are not satisfied with one ghostly figure in your Halloween decorations, then this is for you. Scare the pants off of any person by creating a whole group of them. These are actually costumes but can be easily used for outdoor décor as well.
Make these larger-than-life scary ghouls and arrange them throughout your garden or yard to create the illusion of ghouls emerging from the darkness. Since you need to make a lot of them it may take more time, so put your DIY Halloween ideas into action early.