answer:Babysitting was how I made my money at your age. Lots & lots of babysitting. Other ways friends made money: Lawn mowing, garage sweeping, helping people do outdoor projects, making bracelets to sell, pet care, dog walking… If you want to sell things, American Girl dolls-etc on ebay sell well (I have a store), BUT, to get top dollar for items sold online, it’s best to sell from Sept thru the beginning of Dec to get the x-mas shoppers.