Move over, “Take Your Kid to Work Day.”

These days, companies are creating more unique and unusual themed days at work, says Tim Toterhi, founder and executive coach at Plotline Leadership. It’s often a bid, he says, to appeal to millennials, who care about a company’s unique culture, which these unique days often highlight and celebrate. It’s also a way to infuse fun into the office — which can spur creativity — and “engage with employees in different ways,” he says.

Common themed days include Casual Friday and Take Your Kid to Work Day, but some offices have gone above and beyond with creative, and sometimes weird, new events.

Spooky Devil Dog Day: Every Halloween, Ben and Jerry’s employees parktake in the time-honored tradition of…Devil Dog eating? The fastest devil-dog-eater is crowned the Halloween champion. And this is done in extreme costume, entailing “masks, papier mache, outlandish get-ups, makeup, the whole nine yards.”

Work Somewhere Else Month: During Facebook’s “Hackamonth,” software engineers leave their departments to work full-time for others, to “increase the sharing of knowledge across teams.” So if you’re a software engineer who’s always wanted to try being a chef, consider this company.

Peanut butter liquid nitrogen milkshake amazingness by Sydney of Facebook Culinary Team. View from Facebook NY. We're hiring. FB employee? Consider a hackamonth.

Posted by Joseph Barillari on Thursday, June 18, 2015

Bagel Day: In its early days, Lyft used to hold trainings for its drivers in their San Francisco offices, and provide free breakfast. With drivers now spread across the country, the trainings are no longer. But Lyft still commemorates “Hump Day” with free bagels for its employees.

Take Your Dog to Work Day: On June 23, pups across the U.S. got a taste of the working world, thanks to this national holiday sponsored by Pet Sitters International. Workers in all fields showed off their canine friends, from athletic trainers:

'ele'ele keeping @ian.walsh on task #itsabigjob #dreamteam #powercamp #bringyourdogtoworkday #dogsofinstagram

A post shared by Samantha Campbell (@deep2peak) on

To WWE stars:

The #WWE Superstars have NEVER been shy about celebrating #BringYourDogToWorkDay…

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Although sadly, some places were still off-limits,

How adorable is @jimrosenfield's dog Finn watching Jim work! #bringyourdogtoworkday #mansbestfriend ❤️❤️

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And some were a little worn out from the experience.

Just another day at the office #lorimargolisinteriors

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Poetry at Work Day: The second Tuesday in January is Poetry at Work Day, sponsored by small press Tweetspeak Poetry, when employees are encouraged to casually promote poetry around their offices. Companies around the world, including Frugi, the Canadian Broadcasting Corporation, and the First Bank of Nigeria urged their customers to write poems about them, prompting hundreds of diverse (and sometimes hilarious) responses.

It’s poetry at work day! Feeling stressed or overwhelmed at work today?Write a poem about something in your office-…

Posted by First Bank of Nigeria Limited on Tuesday, January 12, 2016



Take Your Parent to Work Day. LinkedIn, Google and dozens of other companies host this holiday — typically in November — and it’s popular with workers of all ages. As LinkedIn explains on their website, “Bring in your parents to work with you and say thanks for everything they’ve taught you along the way.”