This site is from the Science Museum of Minnesota. It explores symmetry using butterflies. You can view pictures of their butterfly collection as well as see a lesson plan for making a balancing butterfly.
Fences stand up on the tables as opposed to laying flat.
Give each child a tagboard strip approximately 3 inches by 9 inches. Using paper pattern blocks, the children copy the fence pattern by gluing the paper pieces down. Attach the small individual class photo of the creator and laminate for future use. Poster - Here you can order an alphabet symmetry poster with teacher's guide.