a really fun idea for classroom management/transitions... the "action cup!" write different actions on popsicle sticks, such as "pretend your legs are spaghetti" and have one student pick an action for the class to do each time they transition!
Halloween, my most recent addition to the set of movement activities for kiddos. When your students need to get their wiggles out have them line up on one side of the classroom. Show them one card at a time to have them move across the classroom like ghosts, skeletons, Frankenstein, and more. I love these activities because they are quick and can refocus your students.