Crocs.com Sale on Mammoth Crocs !! This post may contain affiliate links. Please see the full disclosure policy here. Posted on January 27, 2010 Written by Mary Leave a Comment If you’re a fan of Crocs, you will love these!! Mammoth Crocs are on sale for $14.99 for children and $19.99 for adults. Use CROCSAFF10 for an additional 10% off and free shipping!! Head over HERE to check out the sale!!