One day I decided to try to tat spiral. I didn't found anything interesting about it and tried to create some universal (you know, I like universal patterns!) way to do it. I used the Archimedes spiral equation as a base. I was not very successful, I must admit. These spirals are tatted from one end (after the flower) to another (before the next flower), they contain downwards picots and something like Catherine Wheel joins, but kind a upside down. The back side looks not very pretty, and the spirals are not very stable themselves. Maybe, somebody knows more about spirals?