Bull said one of her motivations for fundraising was improving awareness of brain tumours, which she believed were widely misunderstood.
She said: “People assume brain tumours are so rare, but they’re not.
“I’ve heard so many peoples stories who have had a brain tumour.”
One of her latest awareness projects features more than 100 knitted hedgehogs, made with the help of friends and family.
Each hedgehog contains information about Robilliard’s story and a QR code linking to fundraising information.
The toys have been hidden around Guernsey and taken overseas by supporters, with some ending up in France, Switzerland and New Zealand.
Bull said she chose hedgehogs because they were cute animals and reflected Robilliard’s love of wildlife and nature.
“It’s just getting his story out there and spreading awareness,” she said.
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