I'm thinking about doing some Hetalia cross overs.

Probably Gravity Falls or Phantom of the Opera. 

If you have any character ideas or other cross over ideas, please comment.

So far, I'm thinking...

Alfred as Christine Daae (XD)

Francis as Raoul (or however you spell it)

Ivan as phantom (I love RusAme)

Yao as Madame Giry

Kiku as Meg Giry

But, like I said, I'm open to ideas, or critiques if you hate my list. 

Please voice your ideas, have a great day!