Celery fish would be a fun activity to pair with a fish thematic unit. I would use it with pk-kindergarten. I think I would use this after reading rainbow fish.
Krake basteln // Styrofoam Ball Octopus Craft for Kids (fun for an ocean theme !
Handprint Fish Puppets - Kid Craft - Glued To My Crafts
Creative Little Fish Crafts for Kids (Fun for ocean themed art project.