How to create covered glass shapes in Rhino

What method would be best for creating closed class enclosures for various shapes?
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Hello- please see -
http://docs.mcneel.com/rhino/6/usersguide/en-us/index.htm
http://docs.mcneel.com/rhino/6/training-level1/en-us/Default.htm
https://www.rhino3d.com/learn/?query=kind:%20jump_start&modal=null

-Pascal