In this at-home project (I encourage parents to help), I challenge my students to create a 3-D model of a cell of their choice. They must also write about how the 3-D shape allows for the specific function of the cell. I have listed several types of both animal and plant cells, like neurons, osteocytes, goblet cells, guard cells in plants, etc. This activity is intended to be used with a high school biology course. When the projects are due, we do a "cell walk about" and learn about each other's models. Yes, my classroom becomes FULL of cells, but it is an amazing project and allows for a ton of creativity and learning!