Here's a list to help kids brainstorm what to sell. Think about a product that solves a problem or just something you love to do. The kids are encouraged to get creative, think beyond this list, and explore ways to use upcycled materials to make new products. As a reminder, kids may only sell products/services they have created/developed. No reselling store-bought items. Below are 50+ eco-friendly ideas on what kids can make and sell.