Thought I'd try out the snowflake pattern using different hook sizes as suggested.
I used my DK cotton yarn and hook sizes 4mm, 3mm and 2mm.
The 2mm one was rather fiddly but manageable.
I then tried the 2mm hook with some crochet cotton and also a finer cotton and a 1mm hook.
Have to say I couldn't even see the hook part of the 1mm hook! It was more done by feel and I often dropped the stitches!
Definitely challenging with the smallest hook size! Now I really need to get some spray starch and pin out all these new snowflakes.