How can i create a ribbed surface on a rounded object

[Oregonerd]

Another similar method that you can look at here:

Folded-like shape

I imported the twisted star shape from Corel Draw as a DFX. I selected it and used the “move tool” to copy, move it up and then rotate the copy. I repeated that several times, also using the “scale tool” to scale each copy. Then I selected the bottom star shape and “lofted” it to the other copies above it. I was simply testing shapr at the time to see what it could do and turned out pretty good so I printed it