Stepping Stool for toddler

[BDIAS]

Does anyone know where to get a stepping stool that is made of wood and has two steps? The ones at most of the baby stores around here just have the small stepping stools. My son is not tall enough to reach the sink on the smaller ones, and we want him to start washing his own hands, thus he needs a stool that he can grow with. We would also like to use it for the potty.