Hippo Pottymouth By Lefkowitz, Ken and Notaro, Caitlyn (ILT) Books / Hardcover Books › Juvenile Fiction › Concepts › Words ISBN: 1631778927 / Publisher: Mascot Books, December 2016 Price Starting at $9.79 Free Shipping Send to a friend Add to Wishlist Below is a list of products arranged by condition. Select the quantity of the product you desire and click the "Add" button. Collectible - Like New Signed High Quality! Signed Copy Collectible - Like New. Signed by author on front pastedown. $9.79 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store. Reviews Goodreads reviews for Hippo Pottymouth