Is it possible to create good hummus without a food processor?
While you can make a decent hummus with a blender, it will be thinner than the hummus you would make in a food processor (at least thinner than my recipe).

If you have a potato masher or ricer, either would do the job nicely, giving you a texture that is less smooth than you might get with a food processor, but definitely good.  I like the texture when done by hand (think lumpy mashed potatoes) and the flavor, of course, is the same.  You can accomplish the same thing a little easier with a stand or hand mixer.

Keep in mind that hummus has been around a lot longer than the food processor, so if you do it by hand, it will probably be more like "real" hummus.