We've all likely said it at one time or another: What do you give someone who appears to have everything?
The phrase probably fits few better than Prince William and the Duchess of Cambridge, but it's not stopping some countries and designers from extending their best wishes with a gift for the royal couple's first baby.
Finland's social security system Kela sent the couple its traditional baby box, a starter kit it gives to all of its country's mothers-to-be. It includes clothes and toys for the newborn, as well as condoms for the father and bra pads for breast-feeding for the new mom.
"We were delighted to receive the very kind gift of the maternity package from the Finnish government," a spokesman for Kensington Palace said. "It was a very thoughtful gesture, and we're very grateful for it. I'm sure the Duke and Duchess will be very interested to see the contents."
Other countries plan to splash key landmarks with pink or blue lights to announce the baby's arrival. New Zealand will light up such spots as the Auckland Sky Tower and Oamaru Opera House, while Canada will illuminate Niagara Falls and the CN Tower.
British jewelry designer Theo Fennell reportedly created something especially for Kate, a $15,000-plus bracelet that includes a mini diaper cream holder, according to E! News.
But the royals don't expect to be treated, well, like royalty. In fact, Will and Kate have asked that people refrain from sending gifts and instead use the money to make a donation to charity. The United Kingdom's royal mint is even using the occasion as a chance to give a small token of congratulations to other women who will give birth on the same day as the Duchess. They will receive a silver coin in a pink or blue pouch with a card describing it as a good luck penny.
Sara Bauknecht: email@example.com or on Twitter @SaraB_PG.