A duck that lost its feet to frostbite is waddling again thanks to a Wisconsin, USA teacher and a 3D printer.

Vicki Rabe-Harrison rescued Phillip the duck and, after watching a video of a 3D printer online, turned to South Park Middle School teacher Jason Jischke in Oshkosh for help.

Ms Rabe-Harrison told WBAY-TV that she assessed Phillip's quality of life and was planning to put him down when Mr Jischke called to say he and his class were working on the project.

It took them six weeks of trial and error to get the prosthetic feet just right. Phillip was a bit wobbly when he first tested his new feet but he has now joined other birds and animals at a sanctuary in Cedarburg, 20 miles north of Milwaukee, USA.