Spooky Terrariums an easy glass jar and a couple creepy, crawly plastic critters and you’re set. Nothing says Halloween quite enjoy a few black bats and you are able to produce your own chandelier with hanging bats to decorate your house or porch. Jack-o-lanterns are fantastic, but for people who aren’t great at carving pumpkins, they may be a little drag to make, and it may become pretty messy.