DMC's Festive Tatting was one of the first tatting books I bought after I learned to tat, and this snowflake has been one of my favorite patterns ever since. The original has some picots in the inner rosette, but I have removed them to make the pattern more airy. I probably went a little overboard with the length of the decorative picots on this one, but I like the contrast between the graceful lines and the frothy edges.
Turns out this ALSO is my 25th snowflake post. I challenged myself (via the 25 motif challenge blog) to make 25 weekly tatting posts. Other than my unplanned multi-month summer hiatius, I did manage to post weekly. I've also had a lot of fun, so I think I'll sign up for another 25 challenge and just keep going.
The book is sadly out of print (and DMC was not very helpful when I emailed them to ask if they were planning to reprint it) but at least at the moment it's not unreasonably priced on Amazon:
UPDATE: I just discovered this pattern can be downloaded for free at www.dmc-usa.com/~/media/Media/Inspiration/Tatting/Festive%20Tatting%20Ornament%20No17.ashx. I can't find an index so no idea if there are others available, but this one is.