In naming their hedge funds, managers have found inspiration in a childhood neighborhood (Highbridge), favorite ski trails (FrontFour) and even a grandfather (Melvin). At Och-Ziff Capital Management Inc., executives sought out branding professionals and spent tens of thousands of dollars to come up with a new name: Sculptor Capital Management. The $33 billion firm chose Sculptor because it "evokes the dedication, persistence and vision that embody what we strive for daily as stewards of your capital," according to a letter sent Monday to investors.