The Prince and Princess of Wales showcased their DIY and creative skills, as Kate was dubbed "Banksy" and revealed her own personal interest in carpentry.
In their first joint outing since their Easter break, Prince William and Kate spent their 14th wedding anniversary in Tobermory on the Isle of Mull in Scotland.
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The royal couple mucked in at Aros Hall community hub, which is benefiting from a renovation grant from the Waleses’ Royal Foundation, as they leant a hand with painting and nailing wood, with the Princess revealing that she was gifted a chainsaw for Christmas.
The downstairs of the hall has been converted partly into a new soft play, complete with pretend play area and mini cafe for young children and their families.
WATCH: Prince William and Princess Kate greeted with a cheer on the Isle of Mull
William and Kate were invited to paint a flower onto a puffin mural, with the Prince ushering his wife to do the first one, joking that she is the artistic one and that there is "no competition".
The Princess took her time painting a small white flower, persuading her husband to do his own.
"I think we've found Banksy," joked Banjo Beale, the interior designer and television presenter who lives locally and is working on the renovation of the hall.
The Princess added the finishing touches to the mural
In the soft play area, Kate spoke to mothers about the facility, asking about the services and connections with other parents.
She told them she wished there had been a similar place when she had just had Prince George while living in Anglesey, telling them that she had visited the Waitrose cafe to get out of the house and see people.
The couple are officially known by their Scottish titles the Duke and Duchess of Rothesay when in Scotland and have a connection with Mull, as the island is part of lands once ruled by the Lord of the Isles, one of a number of Scottish titles William inherited from his father when Charles became King and William the heir to the throne.
William and Kate met at the University of St Andrews in Fife and became friends before embarking on a romance.
The couple were married at Westminster Abbey on 29 April 2011 and their anniversary night will be spent at a self-catering cottage on Mull after a day of official engagements.
The Princess showed off her DIY skills as she used a nail gun to help put up a sign for the Community Pantry.
Shown a small work station, where Tom Nelson was making a new 'surround' for the community food bank fridge with wooden tiles on its roof, the Prince and Princess agreed to use the tool to add their own.
William went first and fired several nails in successfully before handing it over to his wife, advising her not to pull the trigger then and there "otherwise our trip will be remembered for all the wrong reasons".
Crouching down and adding her tiles matter-of-factly, the Princess was heard to say: "I've been given a chainsaw" for Christmas.
Banjo, admiring her work, told William: "What can't she do?!".
William, acknowledging his wife's prowess at trying things out on public engagements, replied: "That always happens."
After visiting the community hall, William and Kate toured Tobermory Producers Market where they met stall holders, including local food producers, crafters, and artists.
The Princess told stall holder Sheila Barnard she was "desperate for any tips" for her beekeeping hobby.
Kate said: "This is my summer project, I’ve only just started.
"At our home in Norfolk, I'm not there much during term time but during the summer I am hoping to really immerse myself in the process. I find it absolutely fascinating.
The couple then visited Croft 3, a combined croft and restaurant in Fanmore with stunning views across the water to the neighbouring isle of Ulva.
As well as touring some of the croft's 50 acres of land, William and Kate met some of the Hebridean sheep farmed on site, and discussed the finer details of crofting with owners Jeanette Lynn, 43, and Jack Shaw, 38.
The conversation ranged from dry-stone walling and polytunnels to what grows best in the "salty environment", and the community benefits of a having local slaughterhouse.
After the tour the Prince and Princess got to work on a small outdoor barbecue, cooking parcels of home-made haggis wrapped in chard with a glaze of honey and Mull whisky.
These formed part of a meal for about 30 farmers, crofters and pupils from nearby Ulva Ferry Primary School, alongside sausage rolls and savoury scones.
During the meal the couple spoke to diners about life on the islands, commenting that it was "so nice" to see the community come together.
Kate was particularly interested in speaking to the schoolchildren at one end of the table, and crouched down to ask them questions.
She asked them what their favourite foods were – other than sausage rolls – and whether any were in years two or five, the years her own children Louis and Charlotte are in.
She also asked them: "What’s the best thing about living in Mull?"
One of the children replied: "Seeing dolphins every day."
LISTEN: Why Princess Kate did not photograph Prince Louis for his birthday portrait
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