Photo: Gonzalez Family

Mason’s Costco Birthday Party - Canton, MA November 9, 2019

We know what the theme of our next birthday is going to be —Costco!

No, we aren’t kidding. And neither were Sebastian and Josie Gonzalez, who threw aCostco-themed partyfor their son Mason’s first birthday.

So it only makes sense that Mason — who was crowned “Employee of the Year” during his party — join in on the fun.

Gonzalez Family

Mason’s Costco Birthday Party - Canton, MA November 9, 2019

In addition to the posterboard, which documented the birthday boy in a series of 12 photos — one for each month of his life so far — there were also Costco-themed decorations including shirts, aprons, and name-tags, which were handed out at the beginning of the party.

Josie also photoshopped Mason’s birth certificate so that it looked like his middle name isKirkland, the name of one of Costco’s signature lines.

Mason’s Costco Birthday Party - Canton, MA November 9, 2019

Most of the appetizers and food were also Costco groceries (of course) and there were display signs in front of each item in the same style as those in-store. Some were clearly jokes, like the meatball dish sign in honor of “their little meatball Mason,” which had height and weight properties that reflected those of 1-year-old.

There was also a sign for the family’s dog, Sampson, which noted that the Golden Retriever is 74-lbs. and “FREE.”

Mason’s Costco Birthday Party - Canton, MA November 9, 2019

Guests showed up in red, white, and blue Costco-themed outfits to celebrate the toddler’s birthday, while others showed up with Costco’s famous rotisserie chicken in tow.

“Usually it’s just our family and friends laughing over my husband’s insane obsession with Costco,” Josie toldDelish. “It’s even more amusing to see all the articles that have been written now and all the additional people who are almost as obsessed as Sebastian!”

“So many people drinking the Costco Kool-aid!” she continued. “But to be fair, it’s obviously the best quality Kool-aid at the most affordable price because that’s the Costco way of life.”

WATCH: Costco to Pay Tiffany & Co. More Than $19.3 Million for Selling Counterfeit Rings

The news of the Costco party first made news after Josie shared photos on Reddit. She captioned the thread, “My son’s first birthday party was LIT.”

A lot of commenters agreed. One user wrote, “I love this! I’m a little obsessed with Costco. Such a fun theme.”

Another wrote, “This really is all out! Wow. 100% no judgement here, I need Costco in my life so this is purely curious- why? Like what was the thought process that led you to this? Does your little meatball love Costco?”

Mason’s Costco Birthday Party - Canton, MA November 9, 2019

“Everything you could possibly need, as well as everything you absolutely don’t need, is at Costco,” Josieaddedto Insider of her love for the store. “And if I’m being honest, we buy it all.”

source: people.com