Not long ago I had to take a cat to surgery for vomiting and not eating. Radiographs showed something in the intestines that shouldn’t be there. During surgery I removed the rubber end of a Nerf gun bullet that the cat had eaten and was now causing an obstruction. The same week another cat presented with the same signs at the emergency clinic and surgery was required to remove the exact same thing, the end of a Nerf gun bullet. So please make sure to pick up after playing with these toys, your cat is depending on you!