These babies dressed as pickles are the most dill-lightful thing you'll see all day

It's impossible not to smile at these newborn babies all dressed as pickles. Yes, pickles.

The University of Pittsburgh Medical Center's Hospital dressed up the babies as pickles in honor of Picklesburgh, Pittsburgh's annual food festival dedicated to the briney snack.

"We were so excited [to be part of this]," Hilary Costello, mother to Emmett Costello, told "GMA." "It was a cute thing we can tell him about when he's older."

"We call him 'Pickle Boy' around the house," she said.

The fifth Picklesburgh celebration kicked off on July 26 on the Roberto Clemente bridge, and it featured everything from a 35-foot pickle balloon that floated over the city to tons of different pickle options.

"We've been thrilled with the community feedback we've received, but we have never had quite a gift like this that we've received from our community with these little gherkins," Jeremy Waldrup, president and CEO of Pittsburgh Downtown Partnership, said in a video made by the hospital.

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Dressing up newborn babies in festive knitted clothes is a tradition at UPMC Magee-Women's Hospital like not-so-ugly Christmas sweaters over the holidays.

This time, the babies were dressed in bright green knitted blankets with little bumps and matching hats to look like cozy little dill.

"Having a baby can be pretty stressful and having the ability to enjoy these festivals that we have here really lightens the mood and increases the patient experience," said Chris Vistas, director of hospitality and operations at UPMC Magee-Women's Hospital.

Are pickles the most common pregnancy craving?

These pickles outfits were also playful spin since pickles are often said to be a traditional pregnancy craving for some moms.

So, how common are these pregnancy cravings? Are pickles really the most desirable snack for soon-to-be moms? It's probably an "old wives tale," Dr. Jacques Moritz, an assistant professor at Mount Sinai Medical Center, explained.

Cravings, from pickles to ice cream or carbs vary person to person, Moritz said. While they're often blamed on hormones, there's no medical study to back that up. He used pickles as an example for when a pregnant woman has too much alkaline in their body, and need something more acidic, like pickles.

"There was an old wives' tale that the cravings are due to something that your body is missing," Mortiz told "GMA." "It's just theory, it's never been proven."

Whether you're feeling pickled by these cravings or feeling sour about it, we hope you found these babies dressed as pickles as dill-lightful as we did.