Cozy: Incorporate elements like plaid, wood, candles, and warm blankets to create a feeling of hygge.
Nature: Use natural elements like pinecones, evergreen branches, and birch logs. You can paint pinecones with white or silver "frost" for an extra touch.
Snowflakes: A universally recognized and beautiful symbol of winter, which can be used in various forms like ornaments, wall hangings, or stencils.
Stars: Twinkling stars can evoke a sense of wonder and are a common winter motif.
Lights: Use strings of twinkling lights to create a festive and magical ambiance without religious symbolism.
Snowmen: These are cheerful and fun symbols of winter.
Hot chocolate bar: Set up a station with various toppings like marshmallows, whipped cream, and sprinkles for a fun and warm activity.
Cookie decorating: A festive activity for all ages, you can provide plain cookies and various icings and toppings.
Charity and giving back: Focus on the spirit of generosity by organizing a food or toy drive, or volunteering as a group at a local shelter.
Winter animals: Decorate with images of winter animals like deer, owls, or penguins.
Ice skates and sleds: Use vintage ice skates or small sleds as decorative accents, perhaps with greenery or lights incorporated.