My children like feeling useful, and they like just about as much being outside and near (or preferable in) the water. This activity achieves all those goals. All you need is a Cloth Washing Activity set and a child-size Hardwood Clothesline Stand. I myslef use the scrub board for delicate clothing (like silk), and the clothesline stand is very useful since it is compact, foldable and transportable.
Sometimes, I do not have enough clothing for a load of laundry, so this is when the Clothes Washing Activity comes handy :) It is a practical activity for the Kids, which is purposeful and useful, and we save water by not running a load of laundry.
Do your children help you with the laundry?