All made in a minut ! :)
2 Curves (can be 3D)
LineWeb 10 Lines
Erase 2 Curves
Loft "Straight"
Erase Lines
Extrude "Separated" (no same successive faces!!! )
Union
Select faces : sSPlit by Max Smirnov
Select only rectangles (Script by Michael)
Extrude "Tapered"
SubD beta 9 by Max Smirnov



Then Flow over a Sphere