Creativity
Creativity is the ability to generate innovative ideas and manifest them from thought into reality. The process involves original thinking and then producing.
http://honestinfomercialreviews.com/wp-content/uploads/2009/05/nubrella_weird_invention.jpg
Invention
An invention is a new composition , device or process. An invention maybe derived from a pre-existing model or idea, or it could be independently conceived in which case it may be radical breakthrough.
This is an example of an creative invention video I found for your viewing.
http://www.youtube.com/watch?v=LNrKYkxHvF0
Novelty
Novelty is a patentability requirement. An invention is not patentable if the claimed subject matter was disclosed before the date of filling, or before the date of priority if a priority is claimed of the patent application.
A Switch Blade Comb
Innovation
What do I understand about Innovation is its a change in the thought process from doing something or "new stuff that is made useful". As an example a pendrive nowaday has many design but still works for data storage.