Size 10 crochet thread
1.5mm crochet hook
The original pattern, and many more free snowflake patterns, can be found here.
Print the above image out onto ordinary paper. Tape the piece of paper to a sheet of styrofoam. Tape a piece of baking paper or wax paper over the top of that. This creates a non stick blocking template. The above grid allows you to easily line up your snowflake spokes so they are symmetrical.
In a small bowl dilute a little white glue until it is the consistency of pouring cream. Saturate the snowflake and squeeze well to force out any excess. Make sure you are using rust free pins, and pin to your template. Give a sprinkle of glitter if you like, I like quite a bit as I use them on the tree and really makes them sparkle. Allow to dry for 24 hours and then remove the pins and peel away from the paper. You can re-use that printed template several times.