CINCINNNATI ZOO EXCLUSIVE. This limited-edition, custom-made Rookwood Pottery ornament celebrates the journey of Fiona the hippo at the Cincinnati Zoo & Botanical Garden. This mold of Fiona’s footprint is actual size taken February 13, 2017 when she was just three-weeks-old and still under 24-hour critical care. Fiona was premature and weighed only 29 pounds at birth. The normal birth weight range for a Nile hippo is 55-120 pounds. Her tiny footprint reminds us of where she started. Fiona is now healthy and thriving and will weigh around 3,500 pounds as an adult, with a footprint the size of a large dinner plate. Only 1000 ornaments per color available for a limited time.