This pattern is now available for sale on Ravelry – http://www.ravelry.com/patterns/library/four-snowflake-bookmark
This is a very easy bookmark pattern that can suitably be made in either #10 or #20 crochet cotton. Individual snowflakes could also be made in any yarn for decoration.
The pattern is available in either UK or US terms.
A little silver in the tassel can add a little sparkle.