Say I have a class that adds an object to a form. How do I generate and reference a unique object name?

Example:
If the object method does:
THISFORM.AddObject("bob", "Line")
then this might be bad because "bob" may already exist

Do I do something like:
THIS.cAddedObject = SYS(2015) && init my reference to added object
THISFORM.AddObject(THIS.cAddedObject, "Line") && add the object

And if this is right, then how do I de-reference it?
THIS.cAddedObject.height = 10
gives an error because THIS.cAddedObject is a string not an object.


Thanks,
Bob