Huw dropped me a a line to let me know about some custom cases designed for minifigs (it's like a Brickset trifecta today!)
BrickLink store Simply Bricks is offering these custom minfig cases for sale. A great way to show off those ABS All-Stars while keeping protected from the elements. UK Simply Bricks is offering them for $2.18 USD and shipping charges apply. See the Simply Bricks store for more details.