Macmillan Cancer Relief is hoping to raise over £80,000 with a new direct-mail campaign that focuses on the importance of funding support for children whose parents have cancer.
The 'helpful bumble bees' campaign is based on a case study of a Welsh self-help group run by a Macmillan nurse for children and teenagers who have been affected by cancer.
"The new pack is all about finding support through caring, which is hopefully an emotive theme," said Judith Dutton, head of donor marketing at Macmillan.
"A child whose parent has cancer sometimes doesn't understand why this is happening to their family."
Macmillan is asking supporters to donate funds to help set up new groups providing free resources, consultancy and training as well as counselling and information services for cancer patients and their families.
The pack forms part of the charity's campaign to widen the understanding of Macmillan's care services beyond nursing, such as complementary therapists, financial support and benefits advice.
This is the first time that Macmillan has used practical and emotional help for children as a theme.