I was watching Dragons Den on Sunday and I was amazed at this presentation:-

https://dragonsden.blog.gov.uk/2019/01/13/dragons-den-series-16-episode-13/

It was a machine which would not only print custom designed candy BUT custom made vitamins with ingredients of the customers choice. 3D printing really is changing the world

 

3D printing is very amazing in making a quick prototype
It prepares 3D models in less than 48 hours

if use PolyJet technology It's really great! this technology use J750 Stratasys.