Question

How to make a simple coilgun?
I've been finding ways to make a coilguns simple and i'm making it for my school project
i'm 14 years old and i want to make it because its awesome project but the circuits are too complicated and i only want the base/basic circuit i can have wires/switch/batteries/copper wire/hot glue/capacitor/led/light bulb/metal(bullet)
i need a circuit that doesnt have more than these cause it will be hard to find
i dont know where to find disposable cameras
because disposable cameras have the complete circuit
Sorry for bad english and helping is appreciated