For really special occasions, I will get some heavy cream and make butter with my food processor. There's nothing quite like spreading butter that was cream just hours before. My kids have come to expect this at major meals. My older son the first was just taking bites of his roll, saying, "Ummmmmmmmmmmm, butter!!!" It was very gratifying.
For ordinary special occasions, Kerrygold Irish Butter is available. I use Land O' Lakes for everyday.