In this tutorial you'll learn how to model three separate drinking glasses using revolved surfaces. Volume analysis is also used to determine how much liquid they each would hold.
**Update** If you are looking for a RhinoScript that can scale objects to a target volume you're in luck! Pascal Golay has posted one to his scripting page here...
It's called "Set Object Volume". Just drag and drop the rvb file over a viewport in Rhino and run the command "SetVolume". Then follow the command line instructions to scale multiple objects in unison while targeting a specific volume for one of them.