Here is Crown of Rings snowflake pattern from Jon Yusoff's Tatted Snowflake Collection. This book available thru Handy Hands or Jon' s blog.it is done in Yarnplayer' HDT Campfire in size three. Three more and I'll have set of coasters.
Yarnplayers threads are located on her Esty shop. To give you an idea how big it is about as long as my iphone , being an inch short. It is on the back of my iPad cover. I used a large clover shuttle and a moonlit shuttle both from Handy Hands.