My preference for rolling pins is sugar (eastern hard) maple or beech. You can also use apple or cherry, but they aren't as hard as the maple and beech. Both are also closed grained woods.
For bowls, I prefer hard woods. Cherry, maple, apple, pear, Pacific Madrone, Myrtle, Ash, Walnut can be kind of iffy as it is strongly scented and some people can react to it. I stay away from oak as it doesn't sell well for me, and red and black oak can leak on you. Really though, fire wood or free wood is the best.
robo hippy