Amazon.com - Best Seller List Discover the many shades of grey in this mom and kid-approved parody. An elephant, a seal, a car, a silo, a puppy, a kitty, a horse, a truck and other various grey objects are all part of this recently released children's book. Fifty Shades of Grey-Colored Objects is a picture book that is appropriate for all ages and makes a fun gift for infants, young children, parents and fans of the Fifty Shades series by E.L. James.