Actually, my (Methodist) pastor has been having something like this for years…The Sunday before Halloween, there is a special time for the children, when a number–usually 2 or 3–of the adults who come dressed up as a saint, tell the kids the story of that saint’s life…
I have been St Teresa of Avila, & St Joan of Arc…The children love it, and the grown-ups inevitabley end up at the local library, checking out books on saints’ lives…
I would point out that we do use the word a little more loosely. I mean, a saint can be any outstanding Christian from history, not just a canonized saint (Catholic or otherwise)…