Something the cat ate maybe or rolled around in and then licked the fur. Hard to tell since you leave no details.
of course
No, feeding a cat poison of any type could kill the cat. This would fall under Animal Abuse laws.
the cat drank poison
It looks like a alive cat sleeping.ADD:A poisoned cat will look a little less than just a sleeping cat. A cat that has ingested poison will very likely have foamed at the mouth constantly. It possibly might have vomited to try and get rid of the poison, also. It is unlikely the cat will have many or any outward physical signs of poison.
no but it can poison it
Urine is toxic, and your cat is too smart to drink poison.
Unless the cricket is laced with poison, it is a natural food for a cat and won't harm it.
no they were just very sharp
If you mean bubbles of soap and water that you blow, no they can not.
Get a cat or a rat snake or some poison.
of course (i think)
No