My shapeways store is also called inclined2loop
Check out The Season Pass Podcast here. They are great guys with great content. I was a guest on a Passholders episode so please consider becoming a passholder so you can listen to me and many other great guests.
Some of my work is done through NoLimits2, the premier Roller coaster simulation programme. Check them out here
This is what I can do as an untrained amateur, if you want some serious design work, custom engineering/analysis or CAD prototyping; check out my colleagues at Coaster lab They are experts in innovative design for the Theme park and Attractions industry.