Unsheathe your games like a samurai
It's uber-geeky, yes, but we're not here to judge
This item falls squarely under the category of Card Saber DS"--a sleeve that holds three DS games and a cartridge, according to Ubergizmo. Yes, it's not the most practical thing, but it costs only about $7. Besides, there's no price on the ability to unsheathe your games like a samurai. And it would go splendidly with your ., but we're here to serve, not to judge. So we herewith offer the "