Porcupines have pricks on the outside.
Incense sticks make scents.
You can mash potatoes, but you can't pee soup. (sorry sorry. Really. I've loved this joke since I was... oh.. six...)
One prick and its gone.
A cactus has all the pricks on the outside.
An American police officer.
King Kong in clingfilm
The porcupine's pricks are on the outside.
A porcupine has its pricks on the outside