Even lamp oil that is spilled can be aspirated. Lamp oils come in a variety of soft-drink colors and look tasty to children. Holly, mistletoe, balsam, juniper, cedar, pines and fir may be harmful if swallowed. Mistletoe and holly are especially toxic, and the berries can look very appetizing. With young children in the home, parents may want to avoid using greens and berries, or at least place them out of children's reach.
Poinsettias have an undeserved reputation for being poisonous.
Artificial snow, evergreen scent sprays, shellacked ornaments, glitter, angel hair and an array of manufactured decorations can be dangerous if ingested. Never use potentially hazardous sprays without proper ventilation. Never use charcoal, which emits toxic carbon monoxide, inside the house, and never use lighter fluid or charcoal lighter fluid to light a fireplace. Don't leave foods that normally require refrigeration out for too long. Bacteria can grow quickly at room temperature and cause food poisoning.