Beatles fans please answer :)?

So I'm a huge Beatles fan and my favs in order are john, Paul, George and then Ringo. I have a necklace that I never take off and it has three charms. A peace sign for John and the peace movement. A heart for Paul Idk why but it just represents him for now and an om for George because of the Hare Krishna thing. So I decided that I really needed a charm for Ringo :) so if anyone has any ideas please let me know or even anything that would represent the other three better thanks so much! Peace.