Seidokai has a good
selection of standard weapons, and you can also get
customized ones as well (selection of wood, shape, etc.). Keep in mind these are Canadian dollars and so cheaper than you'd probably expect.
Everything is of good quality. The Japanese white oak would stand some abuse, but it all depends what you hit it against and how... Broomsticks wouldn't be an issue I think. If buying from somewhere else, remember that red oak is crushable, hickory is a better choice.