Yes sir, it's called an ashtray, or at least that's a common name.
It came about because in Sweden when portions were first introduced people were throwing the used portions all over the sidewalk and where-ever. From what I understand (I wasn't there) there were complaints, so the manufactures came up with the idea of the ashtray on top of the can.
It might be interesting to know how many people actually use them. Occasionally I do if I'm in a car or some other situation where I can't conveniently dispose of the used portion in a trash can.
Please, don't start spitting this stuff on the sidewalk. All we need is a bunch of anti-
tobacco fanatics complaining about used portions.