If you want to make one, chain your first row however big around you want it (sorry, it is impossible to count mine now), then do one full row flat, like normal. This pattern is one double crochet every second stitch, with a chain stitch in between. Then, with your row on a flat surface in front of you, fold the top left corner over meet the bottom right corner, then flip the bottom left corner up to meet the top right corner, join the ends together, and start the next row, chain four, skip a stitch and make a double crochet in the bottom the second stitch. just keep going round and round, joining the ends of each row and chaining up to the next row until you are satisfied with how wide your scarf is.
anyway, the reason I was looking for patterns online today is that I am participating in a knit-a-thon to raise money for our Librarians Without Borders chapter next weekend. We are raising money to build a library in Costa Rica. Actually, we already raised the money to build it, this money is to put books inside the building once it is done. The knit-a-thon is for 6 hours nest Saturday, so I am trying to find enough to do, which is hard when I only like doing small projects. I was going to save this project, but I got going trying to figure out the online instructions, and got carried away.