Peter Pan's Shadow

Peter Pan's Shadow is the living shadow from the film Peter Pan.

Peter Pan
In the film, while Peter was visiting the Darling household to listen to stories, the Darling's dog Nana barked at the intruders and while Peter escaped, his shadow was captured. That night, Wendy Darling discovered the shadow and stored it in her draw to prevent it from getting into trouble. The next night, Peter and Tinker Bell returned to retrieve it. When they found it, they accidentally woke Wendy. As Peter attempted to restore it with soap, Wendy preferred the proper way and sewed it back.

Jake and the Never Land Pirates
Peter's Shadow is set to appear in the special episode Peter Pan Returns. In the special, Peter's Shadow escapes and heads for Never Land. While there, he is captured by Captain Hook.