I made a viking hat for a girlfriends husband. I have seen many interpretations online but wanted something different. I did get stuck on the horns. Not easy to get something to curve AND expand at gradually toward the base. I used this tutorial from the amazing Mygurumi blog. I crocheted just up to line 14 of her pattern and I used a J hook so its chunkier to match the hat. I stuffed them with yarn because stuffing didn't make a nice hook on the horns. I hope she likes it!