Poinsettia:

Poinsettia does not always cause ill-effects but it can cause stomach or mouth irritation from eating just a small amount of the plant.

So the best thing to do would be to keep them out of reach, rather than take a chance that your pet will have a reaction.

Mistletoe:

Mistletoe is even more toxic than poinsettia, especially the berries.

"Holly berries are red, and mistletoes green.
If Fido eats either, he'll have to be seen!"

Christmas Tree:

Small Ornaments hanging on the Christmas Tree look very appealing to both Dogs and Cats and can cause blockages or perforation of the intestinal tract if eaten.

Tinsel has proven to be one of the most lethal for cats. Ingested tinsel can get tangled in the intestines and would then need surgery in order to save their lives.

Electrical cords are also appealing to puppies who love to chew, so try to keep them out of sight.

Foods/Sweets:

Chocolate can cause vomiting and restlessness in pets. The chocolate acts like a stimulant and causes increased heart rate, irregular heart beat and may even cause seizures. Smaller doses of chocolate can trigger vomiting and diarrhea and these symptoms could lead to dehydration if they are not treated immediately. Large doses can be fatal! Make sure your children understand that feeding chocolate to your pet will make him sick. Baking chocolate is the more lethal than milk chocolate. If your pet gets a hold of some chocolate, it is very important to call your veterinarian. Try to determine the amount and type of chocolate the animal has ingested in order to help the vet in assessing the situation to form an accurate diagnosis and treatment plan.

Turkey skin will probably give your dog a dose of diarrhea. Poultry
bones should not be offered to your pet either, as they splinter easily and could become lodged in the pet's throat or perforate its intestinal tract.

Any rich holiday foods that are high in fat are bad for your pet and can cause gastrointestinal problems.

Alcohol should never be given to your pet, no matter how funny it may seem at the time!

Fire Salts(which produce a multicolored effect when thrown on burning wood)

They contain heavy metals, which if swallowed may cause serious gastrointestinal problems and vomiting.

Even if your pet is generally good, assume that your pet will get into things while you are out and put these items out of their reach.

Have a Safe and Happy Holiday!