This lovely rabbit ballpoint pen by Sakamoto Japan is SO adorable! It has 2 different colours, you can use the black ink or the red ink. To choose one you push down on the correct ear, and the corresponding pen appears from the tip. It is so cute to watch this bunny's ears pop up when you retract the pen nib, this is almost to cute to use!
This pen is from the Mimi.Real series

Official Sakamoto Japan product, made in Japan.