Check it out, the Skinny Spin was reviewed on the Wired Geek Dad Blog.
www.wired.com/geekdad/2009/10/chalk-spinner/  It sounds like the reviewer/author, Jonathan Liu really understands the intention of our products.  With so few men involved in early childhood development it is wonderful to see a dad be so involved with his children and have a thoughtful understanding of their needs and desires.  Stay involved with them Jonathan!  It is great for your kids and very rewarding for you.