Where can you easily find money?

okay im 12 and i cant get a job i have a phone so i dont get allowence and nobody has oddjobs around my neighborhood and im too young to baby sit and i really want to start gettting money or somthing just to like save up. Where can you easily find like nickles, quarters, dimes, dollars stuff like that. Oh yeah idk if this matters but i live in louisville, ky