The light up ones are fucking pricy although I have one that will display images and patterns etc when moving very quick and that adds a further level of what the fuck for observers which I enjoy.

However I learnt with a cheap one made of wood that cost me about £15. I would definitely start out there, it is not the easiest thing to pick up but with persistence the feeling starts to click and it becomes such a satisfying thing to do. They are called flow toys for a reason and when you are in a zone, feeling thst flow, it is amazing.