Fold your paper like this, and cut along the edge to make a square.
Makes this :)
You can fold your paper any size to make the snowflakes smaller.
This one turns into...
And this one makes...
You can iron them on a low setting.
And then you can stick them up with some sellotape :)
I made some with some doilies I had. They already had a pattern around the edges :)
I hope you have fun making them! :)