Part of good advertising is being innovative. And part of the holidays is to give just for the sake of giving.

Delta nails both goals with one push of a beverage cart.

In its latest commercial and its latest street marketing campaign, the airline has decided to turn what can at times be annoying -- if your foot's in the aisle -- and turned into a golden opportunity to reach out to potential customers.

The "Cheer Cart" holiday video features a jingle using objects and items you find aboard Delta, including a beverage cart, glasses, pots, cans, shakers, seat belts, spoons and even bags of snacks.

The best part of this ad is that the Cheer Cart is real.

The carts will be passing out in-flight products on the streets of New York, Atlanta, Los Angeles and Seattle from now until Dec. 21. These products—ranging from Coca Cola to Biscoff cookies to T-shirts—will be handed out at local festivals, sports events and other top public gatherings. You can follow the journey on Delta's Facebook page.

The carts and crew will first stop at Radio City Music Hall and Madison Square Garden on Wednesday and Thursday, respectively. The full schedule is also on Delta's Facebook page.

The latest ad is a continuation of the inventive commercials Delta has come out with for the holidays.

In late October, Delta started its holiday campaign out with an in-flight safety video featuring the nutcracker, Santa Claus and his elves, presents, dreidels, holiday lights, yule logs, reindeer, the Gingerbread Man and a grumpy passenger named Scrooge.

Heck, that leg lamp included in the beloved holiday film "A Christmas Story" is even featured.

Commercials like these are not only entertaining and humorous, they are also effective. They bring the travel company closer to the client, sparking a relationship based on common likes and interests.

Delta has lit up the holiday season with its latest ads, coming off as a friend in the friendly skies instead of a commercially-based operation. In turn, it will most likely receive a financial boost from these ads.

The Cheer Cart video has already received more than 100,000 views and 1,500 "likes" on YouTube since being released on Dec. 5. The in-flight video has received more than 200,000 views and 1,000 "likes."

After a while, you forget these are commercials; instead, you simply enjoy them. In a tight economy, sometimes that can make a huge difference.