During the Chinese New Year lion dancers will visit the houses and store front of businesses to "chai ching" (picking the greens). The business would tie an "Ang Pow" red envelope filled with money to a head of lettuce and hang it high above the front door. The lion will approach the lettuce like a curious cat, consume the lettuce and spit out the leaves but not the money. Some other types "Chai Ching" requires the lion dancers to open the lettuce carefully to retrieve the reward and create a design or a pattern out of it, and place it back from where they had "eaten" it from. The lion dance is supposed to bring good luck and fortune to the business and the dancers receive the money as reward. The tradition becomes a mutual transaction.
You can see the offering in the photo below.
... and here is a shot of the Lion consuming the lettuce and spitting out the leaves. You can also see the drum and cymbals in the background.
I was not able to get a good shot of them putting the offering back after creating the design with the oranges and vegetables. It kind of makes the U.S. tradition of eating black eyed peas on New Years Day kind of boring, huh?