The Ariel Pro-zim 2 'Stain By Numbers' print ad campaign is very unique, issuing the users a challenge to stain a piece of cloth via the paint by numbers method and throw it in the wash with some Ariel detergent to see what happens.

Of course, the stained by numbers cloth is supposed to come out fresh and clean, showing the amazing abilities the Ariel Pro-zim 2 detergent has. The Ariel Pro-zim 2 Stain By Numbers ad campaign is pretty clever, reverting back to childhood fun in order to attract sales.