I don't have a good luck charm but when I was born when my mum got home from the hospital an elderly neighbour put an old cheap, nickel coated napkin ring into my pram, my mother didn't seem too impressed by this or the old lady but no surprise there. She let me play with it as I grew older and I can remember being able to use it as a sort of bracelet.
I still have it 58 years later the only item I have managed to hold onto for the whole of my life. Not a lucky charm just a connection to earlier times.