Fusion 360 - Wave-Ribs on a Vase or Office Organizer.
This is from a Reddit question.
NOT a beginner tutorial ;)
Links to my Printable's models:
https://www.printables.com/model/452570-pen-holder-waves-and-ribs
https://www.printables.com/model/453838-pen-holder-waves-and-ribs-tri-version
0:00 Intro and Design Intent
4:00 Workflow start