A retailer is to sell its most popular apples naturally embossed with the Great Ormond Street Hospital logo in a new fundraising drive.
All proceeds from the sale of Marks & Spencer's Jazz apples will go towards providing specialist treatments and research for children at the hospital.
M&S's New Zealand growers achieved the "tattoo" by applying a transfer logo to each apple, which is left on as the colour develops.
M&S apple buyer Shazad Rehman said: "It's great to be supporting a wonderful charity like Great Ormond Street Hospital Children's Charity.
"They work tirelessly to make the lives of children with serious illnesses more manageable and we hope the proceeds of apple sales will help to support the work they do."
Hospital spokeswoman Jacqui Goldhill said: "We're very grateful for the support M&S is giving the hospital through this initiative.
"We need to raise £50 million a year to help rebuild and refurbish the hospital, provide vital up-to-date equipment and fund research into better treatments for the children."
The apples will go on sale from Saturday for 99p.