I agree about learning about the saints, but don’t just read them. Boring. (apologies to the saints!)
Let the kids act them out. Let them write the scripts (or you write up scripts for them) and then put their play together.
Or do a newcast about the saints. Perhaps a 60 Minutes type episode, or even just the local newscast, only set it back in time when the saint lived. “Breaking News–St. Theresa of Avila has levitated again! What is the true story behind this amazing occurrence? Stay tuned!” or “Weather will be very stormy tonight. Anyone wishing to cross the river is advised to let St. Christopher carry them over, especially small children.” (Yes, I know St. Christopher’s Feast Day is no longer celebrated. I’m just giving an example.)
Or even better, hold a trial. Put some of the saints on trial, and let the jury decide whether their experiences are “myths” or “fact.” That would be exciting and everyone would learn a lot.
One thing that’s really cool to do with kids is “Living Video.” Let them choose a song (probably contemporary Christian music) and produce a living video. They are the actors in the video and it’s done live, not on a tape. This is really fun to do, and not as hard as acting out a play, but very dramatic, none the less. I think it would be awesome doing this about various saints.
If they want to study “myths,” perhaps they could do “CSI” and look into the “Incorruptibles.” These are truly miraculous stories that encourage us in our faith.
Have fun! I think saints are cool!