Reviewer: Stacey M. (see more about me) from Punta Gorda, FL USA
We bought these for the kids after seeing the commercial on Cartoon Network and bazillion times. Too cool! By blowing into the end of the pen, your child can create an airbrush effect on paper, cardboard, whatever. I suggest you spread some newspaper out beforehand, or better yet, do this outside. Eager kids can easily give you a lovely creation on your kitchen wall (must be why the company recommends parental supervision). There's a one-way valve in each pen which prevents your child from sucking on the end and inhaling the ink. The best part is watching your child's face when he sees what he can make. This inexpensive pen set entertains our kids for hours (NOTE: don't let the dog get a hold of them- I'll spare you the gory details).