We had a “purple party” one time, since purple is the integrity color. Everyone dressed up in purple and there was an award for the girl wearing the most purple. We had purple decorations and grape punch. This was several years ago, and I don’t remember what else we did to tie it in to integrity. But, once you got the girls there, you could tell stories of people who showed integrity, or even work on value experience from the PP book together.
I immediately thought of the song “Flying Purple People Eater” when you wrote about the purple party. Sounds like a fun idea.