Start presenting ideas to clients for promotional campaigns centered around December observances.

December campaigns are almost always centered on the big-name events of the holiday season. But there’s plenty of opportunity with unique observances to make those general year-end thank-yous a bit more specialized. Here are a few other suggestions for December observances worth celebrating.

Dec. 4: National Sock Day

National Sock Day is a particular celebration of the rarest of all phenomena: a matching pair of socks. And with socks still having a moment – even with strappy sandals – they’re a unique, on-trend choice for a fun appreciation campaign.

Offer colorful custom crew socks in holiday gifting kits aimed at children’s organizations or wellness initiatives.

Dec. 7: Letter Writing Day

In the age of ever-evolving technology, take things old school with this observance that celebrates a good, old handwritten letter.

Suggest that company managers or senior leadership handwrite thank-you notes to 2025’s highest performers on custom letterhead or stationery.

Dec. 9: International Day of Veterinary Medicine

December is a time when many furry friends tend to find their new homes as holiday gifts for children getting their first pet or families looking to add another member. It’s only fitting, then, that this observance celebrating the people who make sure our pets stay happy and healthy – veterinarians – is also in December.

Healthcare systems or vet offices can show a little extra appreciation for employees with a quality piece of branded apparel.

Dec. 19: National Ugly Sweater Day

Celebrated on the third Friday of December each year – undoubtedly to offer the opportunity for many an Ugly Sweater party – this observance embraces the tacky, garish side of the holiday season with quirky patterned sweaters complete with all the bells and whistles.

Feature an ugly sweater contest at the office holiday party, and gift the winner a nice bottle of something – complete with a sweater.

Dec. 22: National Cookie Exchange Day

National Cookie Exchange Day indulges the best part of the holiday season: sweet treats. Baking and swapping cookies with friends, family and neighbors is a beloved tradition for many during the month of December.

Local bakeries can market to busy folks who don’t have the time to bake something fresh for their family cookie exchange with quality branded packaging.