Attaching Troll Horns (Snaps and Screws)

ORIGINAL TUTORIAL LINK: (This includes info on how I made the horns, materials used, etc. with a little info on how to attach them. tl;dr - these horns are made with a foam base and a paperclay coating, and painted with acrylic paints. They are very light due to their foam center, so these attachment methods will probably not work with horns that are heavier or made out of solid clay.) I pretty much never check my Youtube c