Differentiating with Area and Perimeter - use your tile floor in the classroom or hallway to help students practice identifying the area and perimeter of irregular polygons! They loved it in my classroom and were completely engrossed the whole time.
Area and Perimeter Problems and Area Art! Looking for a way to reinforce perimeter, area, AND problem solving? This post gives step by step directions on how to make some real math connections for students--and check out the awesome display it makes!
Self Portraits! "The kids made self portrait mosaics and then found the perimeter, area, and fractions that would make their art piece a "Math Mosaic." (You could modify by just coloring on graph paper)