Product Families: Prototypes

With the product families project I wanted to go with the template of a spherical light shade to create more shadows across a room. The above are a few variations I have come up with at the moment. With these initial prototypes made, I want to ask the following questions: What elements displayed in each design are best for 3D printing? What adjustments could be made to make some of these forms able to be fabricated? And will this type of form be able to be printed as a single unit or will it need to be divided into two or more pieces and then joined together?

Based on the answers to these questions I want to narrow down the components of the variations that are most compatible with 3D printing and proceed to base the rest of the product families designs off of them.