Lava lamps and other fixtures make Jello Bar look like the rumpus room of a suburban ranch house in the 1960s. But central to this goofy throwback that draws folks in their mid-20s to late 30s is the menu of more than 50 kinds of martinis. Most are flavored excuses for people who don't really like liquor, but the classic gin and vodka versions are stalwarts to be savored. There's often live... more