The pair were among about 20 supporters to get stuck in to numbering the jaffas which will be used in the popular jaffa races down Baldwin St, in Dunedin, to be run on July 29.
Cure Kids and Parents Centre were the recipients of the funds raised by the annual race and both organisations' contribution was to number 25,000 jaffas each.
For Izzy (15), who had leukemia, and Moneka (14), who has kidney disease, being involved in Cure Kids was a way to meet new people and make new friends who faced similar challenges in life.
Taking part in fundraisers like the jaffa-numbering was a way to give back to the organisation, they said.
"It's fun," Izzy said.
Cadbury events co-ordinator Lee-Ann Anderson said two jaffa races would be held and 25,000 jaffas would be released in each.
Tickets worth $1 each were already on sale for the event, which was part of the Dunedin Cadbury Chocolate Carnival starting on July 23.
