Yes that's an understatement! I placed the cut off piece of one of the sections over a full soda can to "stretch" it out a bit. I use Denatured Alcohol in mine- Isopropyl (rubbing) alcohol may work for a test.I just attempted to make one. The 2 pieces are hard to get together.
Just go into your bathroom cabinet and get some rubbing alcool. As long as it 70%, it will work. Thats what I use. Its not the best, but its what I have on hand.I just attempted to make one. The 2 pieces are hard to get together. I don't have anything on hand to use as fuel. But I will get some Heet and try it out.