Upcoming Events
An Evening of Style & Giving - New York City
Monday, November 2, 2026 · 5:30–7:30 PM · Mackage, 791 Madison Avenue
Join COSF for an intimate evening of shopping and mingling at Mackage on Madison Avenue. Set among the season's newest collections, the evening brings together friends of COSF for a night of style, community, and giving back — with 15% of event sales donated directly to the Children's Oncology Support Fund, helping support children and families impacted by cancer.
RSVP: rsvp@thepuristonline.com
For inquires: dina@cosffoundation.org
ARCTIC EXPLORATION - Los Angeles
Friday, December 4, 2026 · Family Day 3–5 PM · Evening Program 6 PM–1 AM
This December, COSF invites you to ARCTIC EXPLORATION, an immersive journey that transports guests from Los Angeles into an extraordinary frozen world at Orbital Studios in Hollywood.
Oversized LED environments, volumetric visuals, 4D effects, and practical snow, fog, and haze create a living Arctic landscape, brought to life through extraordinary lighting, sound, and projection. Guests are welcomed down a red carpet and guided through experiential installations and unforgettable photo moments at every turn.
The day begins with a special Family Day from 3–5 PM, followed by an evening program from 6 PM to 1 AM.
Aspen Snow Ball 2027
Mark your calendars! Aspen Snow Ball Weekend 2027 is taking place March 18-20.
Our milestone anniversary - the 5th Annual Aspen Snow Ball - will be Saturday, March 20, 2027! This year's enchanting Emerald City theme celebrates the timeless virtues of hope, courage, and love that inspire us to lift one another up and create brighter futures.
Join us for dinner, dancing, exciting auction opportunities, and an inspiring program as we come together to celebrate and support COSF's mission.
Stay tuned for ticket information, sponsorship opportunities, and additional event details.