Little trades Change wastes to joy and save the world

I have an idea for a new business but no money to make it real. Here in tunisia we are the most African nation that consume bottled water so my idea is a trading machine similar to to a vending machine but the idea is to trade empty bottles with sweets and snacks so beside as conserving nature we can make money by selling plastic and vending sweets and snacks. The idea targets kids and encourages them to help save the world and help solve the pullution problems. And as an entrepreneur we can make profit from different levels: first we recycle plastic bottles and sell plastic, second we sell sweets and snacks and finally we can have partners and make money from publicity