CVS Coupon: Buy 2 Zhu Zhu Pets, Get One Free This post may contain affiliate links. Please see the full disclosure policy here. Posted on December 2, 2010 Written by Mary 1 Comment CVS released a new Zhu Zhu Pet coupon: Buy 2 Zhu Zhu Pets, Get one FREE. Plus I received an email today from CVS with a $4 of $20 coupon!!! So be sure to check your email.