Ergonomy
Rubber bumpers
At least for primary school children it could be useful if the laptops had rubber bumpers. Young children may not be able to avoid throwing around or dropping an object or occasionally hitting something with it. Large, soft rubber bumpers could increase durability. Rubber bumpers would also increase friction and reduce the risk of accidentally pushing a laptop from a desk.
An alternative to rubber could be hollow polyethylene balls with notches to fit the edges of the laptop case.
Satchel
An inexpensive satchel could be built from plastic, bubble wrap and other cushioning material. A satchel would encourage carrying the laptop on the back, which is ergonomically better for carrying over longer distances and may decrease the risk of the laptop being knocked while being carried. A satchel would also decrease the risk of damage through rain and dust, even if the laptop is resistant. The price of a mass produced plastic satchel should be insignificant. The shoulder straps of a satchel could allow to suspend the laptop from the straps, reducing the weight-loading of the satchel to zero.
