After getting a $400 vet bill for extracting a foxtail from his dog, [Hildeguard]’s ear, [Amos Dudley] decided to take the threat seriously and made her a form-fitting 3D printed mask.

The most dangerous part of the foxtail is its long, tube-shaped, spiky head. These spikes are incredibly sharp and, according to Pets 4 Homes, can pierce a dog's skin and become embedded ...