This week's roundup includes a graffitied subway car replica at the launch of Privé Revaux Eyewear's flagship in New York, 3-D printed s'mores at Sue's Tech Kitchen in New York, a step-and-repeat with messages of empowerment at the inaugural Teen Vogue Summit in Los Angeles, and a life-size chocolate holiday train at the Ritz-Carlton, Toronto.

Privé Revaux Eyewear celebrated the launch of its New York flagship on December 4. The event featured a branded DJ booth set against the backdrop of a life-size graffitied subway car that guests could explore and use for photo ops.

Guests like Odell Beckham Jr. of the New York Giants added their own graffiti inside of the subway car to ads from the brand's current campaign.

Actor and musician Jamie Foxx posed in front of a social media-friendly vignette, which is part of the new interactive retail store.

For the holiday season, the Ritz-Carlton, Toronto’s pastry team and engineering team created a life-size train with 700 pounds of chocolate. Located in the hotel lobby, the 12- by 5- by 8-foot train—which took more than 150 hours to create—features lights, candy canes, and edible gold accents on the exterior. The train also emits “steam” with a fog machine, and has a complimentary candy station inside the car for hotel guests.

Sue’s Tech Kitchen, a temporary family-friendly food-tech exhibit at the Bridge at Cornell Tech on Roosevelt Island in New York, is on display through January 1. The immersive activation, which was created by Zuckerberg Media C.E.O. Randi Zuckerberg, featured a Food Printer Station in which participants could use a 3-D printer to make s’mores.

Participants use apples to play the Food Drum, which also teaches them about electrical capacity.

The inaugural Teen Vogue Summit took place December 1 and 2 at 72andSunny in Los Angeles. The event, which was designed and produced by 23 Stories, featured a step-and-repeat that evoked buttons with phrases such as "Women's rights are human rights" and "Love wins."

Several photo ops throughout the summit reinforced the event's vibe of activism—and encouraged social-media sharing.

Sponsor Facebook Messenger created a wall where attendees could "send a message that matters" by leaving notes of encouragement and love.