Plugin for "important dates"/"perpetual" calendar (not tied to spec. years)

Title might be confusing but I will try to describe this… I’m looking for a plugin that will allow me to list important dates, but it CAN’T be a normal calendar-type plugin that includes year, day of week, etc… this is more like those birthday calendars you can buy where you can just list important birthdays, anniversaries, etc… so each month basically lists 1-30 or 31 and you can indicate for each date what important events land on that day. Is there such a plugin? I’m having trouble finding one…

Thanks!