Share 'handrails generated from base curves'

Hi all, I have a few architecture projects that I modeled in Rhino that I'm trying to polish with some more details, such as handrails (and maybe mullions later).  I wanted to figure out how to do this myself but I've run out of time.  I can get as far as setting a curve and dividing it but I haven't been able to generate much more than a blob after that.  Once I have the basic curve outline of a…