Grow weed. It s easy and it always sells.
Well I did something like this in high school and we were selling to a us school and they were selling to us. Another group sold holders for iPod, mobiles etc made from funny and cute socks. You could also perhaps decide to sell something like chocolate repackaged. You get some chocolate you can melt and also some chocolate moulds. Once they harden you collect some together and wrap them up in some nice clear plastic and tie them off. These would likely be low cost yet a huge seller or even cookie s or bun s. I hope this helps
