This isn't Yorkie related but it's kinda funny and in the same area of conversation
..... My dad and father-in-law bought my daughters a cow that was expecting a baby one year at our local fair. This was to be a "college fund project" (breed and sell the offspring or the offspring of the offspring and put the proceeds in a college fund). We put her (Emmy) with all of our other cows and over the years, she managed to have each of her first 4 babies on a holiday. Of course we named them all something related to that holiday - it was pretty cute. She had one on Martin Luther King Jr. Day (named him Martin), one on Thanksgiving (sheesh - can't remember the name of that one), one on Halloween (named "Boo"), and then one on my birthday - maybe not a holiday but still a significant day I guess (named her Tess - my middle name).