Here`s a prank you can pull on someone who smokes. Take a leaf of poison ivy
and tear it up(while wearing gloves). Then take the shredded leaf and wrap it in paper. For best results, try to make it approximately the same length and width.
Finally, paint one end brown. You will have something that looks exactly like a cigarette. Plant the poison cigarette in the victim`s pack. The oils on the poison ivy leaf is what causes the itch. When the victim smokes it, the oils will become vapors and irritate the respiratory tract when inhaled. The exact reaction varies, but it can`t be good.
P.S. Poison oak or sumak will also work