Here's a post on Brain Breaks for primary grade students from Learning Adventures with Mrs. Gerlach. It includes a super (and FREE) download--50 ideas for brain breaks with labels if you want to use the pull-a-stick method of choosing the activities!
I used a 6" styro ball, cut up the pages of a book into circles about 2" (should have used smaller ones) and hot glued them on the styro ball. Moderately successful. For this look, I should have bigger styro balls. book page decor- this links directly to the flickr picture. No instructions, so I'm going to figure it out on my own.