Stitch onto 2 layers of water soluble, rinse in cold water (very important), leave flat to dry, iron and they are ready to hang.

Photos of my finished snowflakes

I have used gold metallic thread for the first color gold,white,green and red.  If you don'w like the christmas leafs in the centre, simple stop after the white finished stitching.  But I thought a bit of color for a window ornament would look great.