A trip to an art gallery or better still to an actual artist.
A European Xmas (orwinter) experience (either the two of you or get friends involved), do it later in the year - put the air con up full - borrow portable ones if you can't get the place cold.
Fake snow on the windows.
Get one of those kids water slides and add water and ice, if friends are coming round make this the path to the front door.
Wrap Up in blankets and jumpers and drink hot chocolate (I'd probably add vanilla vodka to it) then have a roast dinner and Xmas pud, he food it's too hot to eat normally.
Don't completely discount the cooking shows, have you seen come dine with me? Get a couple of friends to join and do 4 meals over 4 days BUT you each have a character, you have to stay in character for the 4 meals and the vote. So your character could be the one who orders everything ahead of time and just serves it.
Even more fun if you filmit.
Never thought of having theme food to match our favorite songs!
Can you get Eurovision in Brazil? Maybe someone could send you a recording.
This is best done with a group of people, you have loads of food and drink ready to represent each country - you are only allowed to eat or drink for who is on scree at the time so when it's Australia (don't ask) you could be eating damper or drinking wine.
It's fine to have a single food represent more than one country so a salad with olives and feta for greece and cyprus.
You do this for the songs and if you have the stamina for the scores too.