It is a dilemma familiar to us all: what to buy the man who has everything for the big occasion in his life.
That quandary was taken to another level at the Vatican today, as Pope Francis and the Prince of Wales exchanged gifts close to their heart.
The Prince told his host: "It's difficult to know what to give Your Holiness", looking at the hamper of homegrown produce he had settled on before modestly wondering: "Somebody else might like it".
An aide lifted the lid of the wicker basket, placed on a table in a study in the Vatican, to reveal jars of food from the Prince's Highgrove estate nestled amongst the straw.
The Prince, in his first audience with Pope Francis, explained: "They're all homemade things I produce".
His wife, the Duchess of Cornwall, added "It's very good". The items are destined to be distributed among the poor and homeless in Rome, as a gesture from the Pope and Royal couple.
Pope Francis and his team had also thought carefully about their official gift to their British visitors, exchanged in front of the cameras in a moment of significance.
He offered red bound copies of copies his Encyclicals, papal documents including Laudato Si which focuses on the environment, ecology, climate change and sustainable development.
The text is subtitled "on care for our common home" and includes critiques of consumerism and irresponsible development as well as global warming, and will resonate particularly with the Prince who has made a determined study of the "harmony" of nature over the last 40 years.
The Royal couple were also given a bronze olive branch the Pope described as a "symbol of peace".
It is the second hamper of food the pontiff has received from the British monarchy, with the Queen giving him a wicker box of produce that included honey from Buckingham Palace and shortbread and whisky from Balmoral when the pair met in 2014.
The Pope, Prince and Duchess had earlier retired to a private room, without their aides or advisers, for the meeting which last 27 minutes.
It is not known what was on the agenda for their private discussions, but both are vocal campaigners against climate change and the persecution of Christians worldwide.
Afterwards, the leader of the Roman Catholic Church told the heir to the throne: "Wherever you go, may you be a man of peace". The prince replied: "I'll do my best".
The Duchess wore a pale gold coat and dress by Anna Valentine for the audience and omitted headwear; at odds with traditional protocol which advises women to wear black with long sleeves and a veil. It is understood the Pope does not insist on such formalities, with aides insisting he would be "relaxed" about whatever the Duchess chose to wear.
In 2009, when she met Pope Benedict XVI, she opted to wear the traditional black with a lace mantilla over her head.
A Vatican spokesman said: "Things have become more relaxed over the last few years there are no hard and fast rules."
The Prince and Duchess were also permitted to tour the Vatican's secret archive, examining original documents relating to the Catholic Church and Britain.
The rare manuscripts, not open to the public, are kept in Sala Sistina of the Vatican Library.
They include the last letter ever written by condemned Mary Queen of Scots on 8 February 1587 before her execution for treason, and one written in 1555 by Queen Mary I and King Philip II on Spain about the restoration of the Catholic Church in England.
During a two-day visit to Rome, the Prince and Duchess also visited the British School, founded in 1901 as a centre for academic study and architecture. There, the Duchess, a keen amateur painter, admitted she was "very envious" of the students working there, adding: "I just dabble, really. I love painting but I am really not very good."
Asked if she had ever exhibited any of her work, she laughed and replied: "You must be joking. Although I did sell two of my paintings for charity at a village fair. Thankfully no-one will ever get to see them."
The visits were part of a nine-day tour of Europe by the Prince and Duchess of Cornwall, widely interpreted as a bridge-building exercise with the continent as Brexit begins. Tomorrow, the couple will travel to Vienna for the final leg of the trip.