Keeping it simple: roundbottom aluminum dice bag, all one color.
 
Hundreds of anodized aluminum rings make up this chainmail dice bag. It can hold about forty 16mm d6s or six of the standard RPG 7-sets. It measures approximately 4 by 4 inches when empty and lying flat. A cord lock and a drawstring made of parachute cord keep its contents secure. Dice are not included.