Charlotte Calder (14), of Lauder Station, won the people's choice award of the wearable art category in the national Youthtown Creatifs Young Designer Awards.
The Columba College boarder used real merino ram horns and wool to give her mask authenticity.
It was the first time she had entered the annual competition, which invited teenagers aged 13-18 to submit a wearable art or fashion garment in categories sponsored by the Auckland University of Technology.
Charlotte, in year 10, was encouraged to make a mask by one of her teachers.
''In year 9 I made a mask for a wearable art subject at school and my teacher thought I should enter the mask competition this year.''
She used papier-mache over half a balloon to make a sheep's face, then bolted real merino ram horns on to it and covered part of the mask with merino wool.
Charlotte also used twine to form a Maori design on the face.
''Part of the inspiration were the two cultures of New Zealand, Maori and Pakeha.''
She had support from her Columba College classmates and teachers who voted for her design.
Charlotte won a printer and a magazine subscription.
