This Crayola Color Wonder Mess-Free Airbrush Kit drops from $19.97 to $5 at Walmart.com. Shipping is free with in-store pickup or with ShippingPass (get a free 30-day trial). This is the lowest price we could find by $15. It creates spray art designs using the included mess-free Color Wonder markers. It comes with six markers, three stencils and 20 sheets of Color Wonder paper. Sales tax is charged in most states.