Every year, I plan a full day Carnaval for my school. I choose activities for the year. Some I change, and some I keep the same. The craft changes every year and then I repeat it a few years later. I always have Metis dancing, sledding, snowshoes, spoons with fiddler. This has been my main success in my teaching career and why my students love my French program. For some reason, this makes them buy into why we learn French as a second language. You could do the full day event like mine or you can make it simpler and have small stations available where teachers are responsible to sign up their class and take them to it. Many ways to use my idea to make it easier or harder on yourself! I have done the hard integration day as I am use to the program now.
It is a lot of work but by far, the best day of my school year.
I have let this editable so that you can copy and paste it to make your own document.