Our "Happy Birthday" message mugs come pre-made with a "Happy Birthday" message already at the top of each mug for milestone birthdays. 2016's mugs are for years ending in 1 or 6 (i.e. 1966, 1981) and milestone birthdays from 100th to 21st. We do not customize these mugs in any way as they are pre-made and ready to ship the next business day. They make a great quick gift for when you want a more personal touch but do not have the extra time to create a fully customized coffee mug gift.