DNA

I've been dreaming and modeling DNA in my head for many years! I've taught a couple thousand students the DNA basics over the years and had them build models out of every imaginable material. In glass I failed with 5 or 6 previous designs but finally I've finished...

https://youtu.be/_kqRpO9PLn4 

...and got it to the light of day. I'm very happy with it! to say the least.  The glass splashes light everywhere!

https://youtu.be/K3wfgiDDYa4

I've had many mental models, hundreds of student models in paper, candy, pipe insulation...and a few failed stained glass  models, alas, such is the way of the world...