Did you ever wonder what the proper name for one of those weird head cones that cutely frames a cat or dog's head when you need to stop them from bothering a wound they have on their bodies (either their heads or their bodies depending on where it is)? Elizabethan Collar. It's pretty self-explanatory really when you see the kinds of ruffs the Elizabethan men and women used to wear in those days.
I know you are sitting on the edge of your seat for this one but it's called an
[BTW I picked my pictures before I took a look at the Wikipedia entry for an Elizabethan Collar - I suppose it's kind of an obvious comparison isn't it? Especially my kitties above :)]