Skeletons are a common sight around Halloween, and as such, I thought I'd spend a week sharing skeleton/skeletal system/bone activities and lessons you can do with your students. They're perfect for Halloween mini-lessons or any time your curriculum brings you to those topics.
First up, pasta skeletons!
Provide your students with an assortment of pasta shapes and black construction paper and let them create a skeleton, being sure to include the bones you've required them to learn.
Another possibility, have them create a more detailed model of one part of the body. While searching for something else, I found this document, which includes an activity in which students create a model of the bones in the hand using varying sizes of tube-shaped pasta.