There are a number of Tkinter builders out there but none (that I've found) that work for Python 3. I don't have the time to learn Tkinter and don't use it much which is why I'm looking for a builder.
Wow, pity I didn't get any useful responses. Fortunately I have discovered a solution. PyQt4 may not be Tkinter but it works just the same ... and works in python 3.x and comes with a GUI designer that is very neat. Takes a bit of research to know how to use it but well worth it
Tkinter GUI Builder