If you work on plushies, try to make a couple christmas bees! Those are a huge hit at the markets that I go to/create. Make a couple Candy Cane bees, regular green, white, and red christmas bees, and even a mistletoe bee would be super cute. If you don’t make plushies and are someone who makes other things (such as clothing and more) you could make some santa hats, both for smaller plushies (or even dogs) and hats for kids/adults too! Also, another option is to make some peppermint pillows, I am positive that those will sell well. I have a market coming up soon which I am incorporating halloween plushies into (I do amigurumi >:D) my next market after that will be related to christmas, so if you use any of the ideas I have presented, please let me know how well they did or didn’t sell so I can get a gauge of if they are worth making or not xD