My grandparents were from germany and as kids we would sit down at cleared workspace and make them out of brown paper bags and nespapers. They ended up kinda looking like a dutch girls hat. We would stape the folded cone. At the top. Grandma always used milk jugs with bottom cut on 3 side leaving a flap that she would place a piece of brick on. She would uncap them once a day for half hour each day unless it was real cold out
