F988G8Nfb11L5Pl.Large
Drakemj writes –

The finished product is a custom laptop bag for an OLPC XO laptop computer, but these instructions could probably be modified for many portable electronic devices. The bag core is made of high density foam, reinforced with paperboard. The bag is trimmed in polyester belting, has an adjustable strap, and a parachute buckle closure.

HOW TO – Make your own XO laptop bag – Link.