After all the chatter of the Catherine Wheel join, I just had to tat the Happy Heart. Trust me to pick a shuttle with the smallest thread already loaded in it, size 80 DMC Dentelle.
Side by side with a Clover shuttle for size comparison
Instead of making a bow or a Josephine knot at the point of the heart, I continued with three split rings with the last one a single-shuttle split for the purpose of hiding the ends. Then I added a tassel through the SSSR.