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Oreo's Wonder Vault activation featured a custom garage door on an unassuming block in New York's Chelsea neighborhood.

Participants were invited to pull a lever, and a brown paper box containing a mini sleeve of Oreos would arrive via conveyor belt.

The inside of the vault's door was customized with a creme filling to look like the new "filled cupcake" flavor.

New Yorkers lined up West 18th Street for their turn at the vault. The stunt proved popular on social media, with people posting before, during, and after their experience.

Matthew Parker Events crafted lighting fixtures for a speakeasy-themed wedding using hats from a party supply store, decorative ribbon, corded wire, and filament bulbs.

In 2013, Hermès hosted its whimsical “Les Jeux d’Hermès,” or Hermès games, in Palm Beach, where an area within the tented party space was transformed into a croquet field with eye-catching chandelier, colorful flags, and cabana seating decked with the brand's iconic silk scarves.

To fete the opening of its new Canadian office—and to launch Porter Airlines’ new nonstop service to South Carolina—the Myrtle Beach Area Convention and Visitors Bureau partnered with the Toronto-based airline on a beach-theme party for travel media in 2010. There, beach umbrellas, lounge chairs, and a sandbox all contributed to the look at the wintertime event.

At Lincoln Center's silent discos, guests can switch between three channels of dance music, including disco, salsa, Top 40, and swing, selected by three DJs on site.

The rest of the center’s silent discos will take place at Snug Harbor Cultural Center & Botanical Garden on Staten Island on August 28, the Woodlawn Cemetery in the Bronx on August 30, and Hunter’s Point Park South in Queens on September 3.

As part of the Lincoln Center Out of Doors festival, attendees viewed a silent screening of the cult classic The Rocky Horror Picture Show in Damrosch Park with the help of headphones.

“I had seen venues commission musicians to score music to silent movies but we wanted to do something different,” said Sternheimer about the Rocky Horror screening.

Crowds of 70 to 90 people gathered in Bryant Park to practice mindfulness as part of the Ziva Meditation series. Sessions included breath work, a short silent meditation, and guided visualization.

Ziva Meditation also offers a guided group meditation in Studio 34 at One Penn Plaza every Thursday at 1 p.m. until September 17.

Svedka has hosted events with giant lawn games. "Incorporating any nostalgic elements [into events] is to further grow brand loyalty and to establish Svedka as a lifestyle brand that is fun and cheeky," said the brand's PR rep Meryl Van Meter.

At the 2014 New York Auto Show, BMF Media Group built a custom arcade and brought in '90s rapper Biz Markie. "The auto show draws dealership owners and salespeople from all over then country, and this was a huge home run for them," said BMF co-founder Bruce Starr.

BMF also wrangled Flava Flav for a 2014 flavor launch party for beverage brand Bai. The musician posed with guests at a photo activation that, according to Starr, inspired plenty of social media traction.

Chicago company Groupon uses nostalgic games—such as Twister—to bond employees at its annual summertime outing.