the last 30 minutes of the day every Friday. Here are the ones I can remember off the top of my head:
Fancy Nancy club (mine, of course!

)
Soccer/Kickball/Cheerleading/Golf/Dance (separate clubs)
Chess/Checkers
Board Games
Legos (could be one club with board games?)
Manatee Friends (school mascot is manatee, fifth graders partnered with autistic students from our school)
Earth Patrol (sounds like the stewardship club mentioned)
Horse Lovers
Scrapbooking/Arts and Crafts/Crafting (separate clubs)
Gardening
Play-dough
American Girls Club (based on the books and dolls)
Hacky Sack
Music
I'm sure there are others but I can't think of any right now. Each club was run by at least two teachers out of one of those teachers' classroom or somewhere outside on campus.