Christmas gift boxes can be found at most department stores, grocery stores, or online retailers. You can also check your local craft stores or even look online at websites like Etsy for handmade gift boxes. Additionally, some retailers offer free gift wrapping services with the purchase of a gift, so you can check with your local stores to see if they offer this service. Finally, there are plenty of DIY tutorials available online that can teach you how to make your own unique and personalized gift boxes.