Costco Sale: Zumba Shake Shake Shrink! DVD Kit by Rhonda July 18, 2026 2/3/17. Costco has the Zumba Shake Shake Shrink! DVD Kit on sale for $39.99 (after manufacturer’s instant rebate), now through February 19, 2017. That is $20 off Costco’s regular price of … 0 FacebookTwitterPinterestEmail
