The original stem design for the “beautiful rose with stem” model is great but it breaks too easily. The “reinforced” remix is a good idea by adding the cone, but it's missing the nice petals at the top, is skinnier and I just didn't like the look of it. So I combined two designs to make another rose stem. This one keeps the awesome petals of the original design but adds a cone primitive in Bambu Studio to make the base solid. The print profile is basically the original stem profile from Soukup273 but with the added cone. I think all I changed was the layer height to 0.24 for a faster print. I think they look great and are much stronger!
Thanks to both Soukup273 and Just.Gil for the ideas.