Most of those items you can get later on, anyway. Any Titan items you can get from Hill Gigas near the end of the game when they replace the goblins as OW encounters. You'll find more Thief's Gloves later, and even if you don't, it won't really matter. I don't think I got the Crecent, but I'm doing fine without it. The Shade Bow(isn't it Dark Bow in the American version?) just has a chance of blinding enemies. Ice sheild you can get from Ice Gigas(which are real easy with a fire spell).