Dozens of young entrepreneurs will become market traders for the day in the finals of a competition run by Bradford Council.
Step Up Market Challenge on June 28 is an annual battle to engage young people across the district.
Children aged five to 19 will create and sell a product.
Items for sale include cupcakes, lip balm, hanging baskets, candy floss, cake pops and mug warmers.
The finalists are working with business mentors who are passing on business skills and support to help make their projects workable.