White paper (or any colour)
If you're a beginner, it's probably slightly easier to start off with a circular shape (however this creates 4-pointed snowflakes and I prefer 6-pointed ones). Draw around something round like a bowl or mug, cut out the shape and then fold it in half. Fold it in half again, then in half once more, so it'll be divided into eighths. For 6-pointed snowflakes, the folding technique is slightly more complicated, but once you get the hang of it it's pretty easy...
3. Fold it in half again to make a smaller triangle.
4. Now comes the slightly more complicated part, you kind of just have to do this by eye but once you've done it a couple of times you'll easily get the hang of it. Take the right side of the triangle and fold it in towards the middle, just past the centre point of the triangle.
5. Take the left side of the triangle and fold it in towards the centre, on top of the right side, so both the edges line up. Try to do this as neatly as possible so the snowflakes end up being symmetrical. It doesn't matter if it's a liiiittle bit off (like in this example, oops!) but try to get the lines as sharp as possible.
7. Now you can create your pattern. I usually just do it freehand and cut out random triangles, lines and circles. Just make sure you don't cut across completely from one side to the other, otherwise your snowflake will fall apart. Or if you fancy drawing on a pattern first, just use a pencil to mark out where to cut (have a search on Google or Pinterest for pattern ideas or just make up your own).
10. Now take your thread and measure out the length you'll need for whichever windowframe/mirror/wall you want to decorate. Lay out the thread on a table and place your snowflakes on top, making sure to spread them out equally.
11. Take a piece of sellotape and stick the thread to the back of the snowflake. Repeat until you've attached all the snowflakes, and made enough garlands to fill your area to be decorated.
12. Depending on what kind of surface you're attaching the garland to, either use sellotape to stick the ends down, or tie a little loop at the end of the thread and use a drawing pin to attach it to the wall.
Is making paper snowflakes a Christmas tradition for you?