We need to know about pinball machines before we can really design one. There are 3 main ideas we want to explore.
When were they first made?
How have they evolved over time?
What impact have they had on culture?
Why were pinball machines illegal for a while? What changed so they could become legal?
Do any of these depictions cause you to have questions or concerns?
Who is missing? Who do we not see depicted?
How has the imagery of pinball machines evolved over time?
What changes do we still need to see?
How have the structure, materials, and engineering evolved over time?
Here's a fantastic video to give insight into pinball game design and building.