The biggest Easter danger to cats is toxicity from Easter Lily ingestion. They are toxic and dangerous. They cause kidney failure in cats and can be deadly. So PLEASE! Either don't bring Easter lilies (which is the best thing to do) or keep them out of the reach of your cat.
Remember, cats can be both curious and sneaky. It only takes them a minute to jump up on the counter and take a nibble. And that nibble could be fatal.
So be safe, keep the lilies away from your cat.
Also please be careful of other Easter dangers such as the grass that goes in the Easter baskets. Some cats will eat it leading to a gastrointestinal obstruction that could require surgery.
Have a safe and happy Easter!