This bowl was one of the first bowls I turned, just about after I had enough practicing my skills on cheap pine construction beams.
As you can see, it is turned from Poplar root, and has a mineral oil finish, and is displayed morbidly on a bed of it's own wood shavings.
I found working with Poplar root difficult since it was so soft compared to any hard wood I worked on before it, but it also mean it took me about a third of the time it normally does to turn the bowl, and a quarter of the time spent sanding another, so it was a quick project with a pleasing result.