Protec Pro Pac PAG 208 mandolin case. $100.
These popular cases were discontinued quite a while back, and are officially unavailable, as you know if you've been looking for one. Here's a slightly used one in very good condition. It's not the sexiest mandolin case ever designed, but is possibly the most versatile. Celebrated among discriminating mandolinists for its ability to accommodate nearly any style of mandolin (I kept a Dobro mandolin in one for a while) and a boatload of accessories, the Pro Pac features a durable and highly protective lightweight frame, adjustable padded shoulder strap, padded handles, protective feet, and an ID tag. Other features: for more information. $100 plus shipping.