Not likely unless you can sell thousands of them. The cost of an appropriately sized injection mold in the US is $30k and $6k in China. Even vacuum forming gets expensive due to labor. 3D printing or SLAing one-offs is not there yet when compared to an ABS or PC molded part especially if you want them clear.

If you can guarantee 1000 ramps will sell in 12 months for $50 each, this would be the only way that it would be feasible. I don't see it happening.

I've been designing molded plastic parts(injection, blow, inj/blow, roto, insert, extrusion, etc) for consumer and automotive for 20+ years. Unless someone is willing to work for next to nothing and has a mold builder and a molder that is also willing to work for next to nothing or doesn't mind losing a little money, I don't see a scenario that this will work.

These ramps are simple enough to create 3D models in Creo or SolidWorks, scanning is more trouble than it's worth. You spend more time cleaning up the model and imperfections in the part than you do building a new 3D file. I'm guessing I could create any pinball ramp in Creo(Pro/E) in just a few hours.

I bought one of Freeplays ramps. They are very high quality vacuum forms and I consider myself pretty critical of all plastic parts. He clearly is doing it because he enjoys it which is good for us because with the amount of hours he is putting into it, he is working for peanuts.

I'd be willing to help Freeplay if he needs help with the 3D files to create the forming side of the thermoform. I also have some pretty good CNC shops here and in China to create the forms but these shops won't work for free unfortunately.