I have shown you how I developed and executed the idea of a double plafond knot. From my available information, this was an entirely novel thing. So I posted my new creation to the main knotting forums, the International Guild of Knot Tyers (IGKT) and the Knot Heads World Wide (KHWW) where a poster from China shared that the two heart plafond is definitely not a brand new idea.
Using the information gained from that exchange, I was able to find more examples including a three heart plafond and instructions. We were also shown a four heart plafond. So, now it’s just a question of reverse engineering how to tie the 3 and 4 heart plafond knots to see if a formula for an arbitrarily long plafond sinnet can be derived.