Punctuation within quotation marks or outside?

The major style guides agree on one thing, and only one thing -- the Brits do it one way and the Americans the other. The latest Chicago Manual also says the American style is becoming more prevalent in Britain given the globalization of the publishing market.  The location of exclamation points and question marks is something else entirely -- the guidance is all over the place.

Here is what I do. American Style for commas and periods -- that is, inside the quation marks.

When I'm quoting somebody else, I place the exclamation or question mark inside if it is the original author's work. If I'm making an editorial addition, I place the punctuation outside the quotation mark. I think this helps the reader understand who is responsible for the emphasis or question. Some style guides agree while others urge absolute consistency.

The sentence in question is a whole other kettle of fish. The quotation marks surround what the style guides might call an unusal usage -- but Card Party isn't really unusual.  The use of quotation marks to surround foreign words, titles, and coined usages is something the typewriter -- which had no italic font -- created.

Some style guides suggest italics should return. So I suggest dropping the quotation marks to solve your problem.

Card Party! or Card Party!

I wonder why you need an exclamation mark at all. My rule of thumb as a Brit is that punctuation marks are contained within the quotation marks.