Plumeria Flowers in Miniature Canes for flower petals is a nifty trick. The start of the cane is most likely the same size as the real life flower petal, we just reduce it and then slice off the miniature flower petals. The Plumeria petal reminds me of a cross section of a hard boiled egg, just put the yolk at the pointy end. Here you see all the steps: large cane, reduced cane, the slices, and the bent petal by the penny. Each flower has 5 petals joined at the yolk end.
