Great topic!!

My Russian Dwarf Hamsters are called Honey and Coco because one really lightly coloured and the other is really dark.

My Springer Spaniel puppy is called Jack - not sure why we called him that but we just loved the name and it seemed to fit with his personallity

My chinchilla is called Tabatha - she was already called that when we adopted her

My Chameleon is called Gizmo because he looks like a Gizmo!!

My African Grey parrot is called Sparky because he was born on Bonfire night and the name Sparky reminded me of the fireworks and sparklers etc.