You can also use an online snowflake generator and make a screen print of your result, although most snowflake generators are fairly limited for style.
For design ideas, Snowflake suggests you visit the Science pages or Snowflake Classification pages, which link to many online photographs of real snowflakes to choose from. Please respect copyrights.
Snowflake uses the Paint Shop Pro graphic program to make snowflake designs.
Here are some pretty good snowflake tutorials for PhotoShop and Illustrator:
Start with the basic 6-sided snowflake pattern:
Copy the 6 sided snowflake triangle shape to your new image document:
Draw your snowflake section using white color on black background for maximum contrast.
Copy the image and paste, first by flipping the pasted image before de-selecting.
Copy the resulting image and paste, first by rotating the pasted image 60 degrees before deselecting.
Select a square section of the resulting image and paste, first by mirroring the pasted image before de-selecting.
Select the entire upper section of the resulting image and paste, first by flipping the pasted image before deselecting.
Ta Da! Your original creation!