Thank you Robin for your hard work and sharing. I used Omega thread size 30 and purposely used two different colors to practice the Catherine Wheel Joins used in this pattern. I don't know why I avoided learning this join for such a long time, you can find instructions on Jane's blog of techniques.
Below is a row of Tina's crowns done in size 40 and should be sewn on my cap as I completed it quite some time ago. The crown pattern has been reworked by Frivole and her comments can be found on her blog here.

How blessed we are in the tatting community to have such talented artists.
These little Tina's Crowns were my first attempt at using two shuttles and throw rings. It was only with the tips and encouragement from my online tatting friends that I was able to complete them.

How blessed we are in the tatting community to have such talented artists.