Here’s a quick little pattern download for making knitted Viking horns! You can then attach them to any hat you like. I even have a tutorial on How to Knit a Hat if you need help coming up with one yourself.
I’ve seen them sewn onto not only Viking-style hats but also monster hats. What a great idea!
The hat shown, with my Viking Horns attached, is a variation of Kate Oates’ Cheery Scrap Cap. You can find her free pattern on the Petite Purls website. It’s one of my favourites.
For more information, check out the Ravelry projects page for the Mighty Warrior Viking Horns and go to the blog post.