My entry:

- What is the most interesting thing you have seen done with a 3D printer or 3D printing technology?

I think it would have to be the 3D printed castle that Andrey Rudenko has built. This shows a great future for the technology.

- If you could build your dream 3D printer, what would it include and what would it do? Let your imagination run wild!

I would have a 3D printer with 3 different nozzles so I could print in 3 different colors. It would also be super fast.