Thank you for your email to Zazzle.
Zazzle has always respected all cultures and would never intentionally have any designs that would be offensive in any matter. For this reason, we would like to thank you for bringing these products to our attention and to inform you that we are currently in the process of contacting our sellers and removing these designs from Zazzle’s Marketplace.
I had a debate with someone over the proper way to protest the t-shirts. She seemed to think activists should click on the "Report Violation" link for each of 5,000-odd products. My suggestion was to go directly to the top. Zazzle has a customer contact page. Its user agreement prohibits racist materials. And the law typically requires an intermediary such as Zazzle to remove offensive items.
Given these facts, why wouldn't you contact Zazzle first? Glad to see I was right on that point.
In any case, Indians successfully challenged another racist stereotype in the mainstream culture. As usual, I didn't lead the charge or tell them what to do. My role was limited to suggesting they contact Zazzle rather than the individual vendors.
For more on the subject of protesting, see Whites Fighting Racism Is Racist?! and Do Protests Work?