BUENOS AIRES - Being born without fingers can be tough for any child. Getting new ones - especially red and blue superhero themed digits - has made 8-year-old Kaori Misue a vibrant playground star.

Flexing her wrist muscles to bend the plastic fingers, she can work with tape and stickers at an arts and crafts class. She can ride a bike, skip a rope and bake pastries with her mom.

Kaori's amazed friends have even begged to borrow the 3D printed hand, which looks a little like a cheerily colored Transformers toy strapped to her wrist.