What is a gardener to do to decorate her garden come Halloween? Try out this amazing Coffin Planter Halloween Decorating Idea. That's what! With a coffin-shaped box from your craft or Halloween store, you can make an easy planter while still decorating for Halloween. From succulents to flowers, you can add any plant you like, but make sure you add in a skeleton for a spooky Halloween effect. This DIY Halloween decoration is perfect table decor or to set on your front porch to greet trick-or-treaters. You'll be amused by this fun planter project for Halloween.