Thanks for your suggestions, Aaron. I’ve done a lot of research into Australian woods and their properties and availability.
Queensland walnut and Tasmanian myrtle are very nice woods indeed, but they are not very readily avaliable and cost as much as some exotics. I would really like to turn some Queensland walnut, though.
Australian cypress is cypress pine, which is far more readily avaliable and in my opinion, looks nicer. I can go down to my local timber store and purchase huge lengths of it. I bought enough a couple of days ago to make well over 100 yoyos.
Karri and jarrah are nice woods and I have turned both of them. I have made many yoyos out of karri and it turns and finishes really well. They both have a good balance of weight and density to make nice solid yoyos. Both jarrah and karri are readily avaliable.
I will never use waddywood or Australian buloke. Those are literally the two hardest woods on the planet with no avaliability. They are so tough that they would likely damage every tool in my shop with poor results. If I could produce a yoyo from them, they would weigh something like 150g in the end.