This week's roundup includes a 3-D bat cave at a benefit in Los Angeles, V.I.P. booths designed like dorm rooms at a Toronto gala, a butter sculpture of the Eiffel Tower at a food showcase in New York, and drones snapping event photos.

A 3-D Bat Cave setup included the Michael Keaton-era Batmobile as an eye-catching prop.

As part of the Taste of France showcase in late September, President Butter brought a taste of Paris to Bryant Park in New York. Inside a temperature-controlled dome, two artists carved a replica of the Eiffel Tower into a large chunk of butter. Hordes of passers-by stopped to peek at the unusual activation and post photos to social media. Grand Central Marketing produced the activation.

More than 1,500 people came out to celebrate the 20th annual Dream Halloween event in Los Angeles, which benefits Keep a Child Alive. Because the event had a young audience, performers stayed on theme: The entertainment included feats from the child performers of Le Petit Cirque.

On October 26, Men's Health hosted its largest-ever Urbanathlon in New York. Some 3,500 athletes tackled the event's obstacle course, which made clever use of some aspects of city living. The 10-mile course included relatively traditional challenges, but, it also asked participants to hurdle yellow taxicabs and use a net to climb over schoolbuses.

The 12th annual Boobyball, a benefit for Rethink Breast Cancer, played on Toronto’s nostalgic side. The theme-driven event on October 18 celebrated all things university and was dubbed “Booby U.” V.I.P. lounge areas resembled dorm rooms.

Guests could pose for photos in a setting that recalled a sorority house.

The gala for the National September 11 Memorial & Museum incorporated artifacts from the 2001 attacks into the modern design of the stage and room. To bring the gala to a close, the Broadway Youth Ensemble performed alongside children born on September 11.

Colorful lighting from Digital Lightning set the mood for the third annual Ballet Soiree on October 26. Because nothing could be attached to the structure of the building, per the rules of the venue, organizers relied on the dramatic lighting to set the event’s tone.

Orlando-based Sonus Studios is now offering aerial photography captured by drones. The quadcopter can carry a still or video camera and fly as high as 130 feet, providing a bird's-eye view of indoor and outdoor events.

The decor at this year's Whitney Museum of American Art gala in New York emphasized materials familiar to artists, such as paintbrushes and sketch pads. Playful centerpieces included table numbers imprinted on silver paint cans.