My roommate had this nifty thing that you put olive oil into, give it a few pumps, and it becomes olive oil spray so you don't have to use as much. I bet I could find one of those... But yeah, an unused spray bottle would probably work fine too! Then if someone sees you hairspraying your salad, tell them it's the newest diet fad, hairspray burns so much fat you don't have to work to lose weight at all!