#dapper day fall

i’m going to fall dapper day at disneyland this year! i went in the spring with more of a 50s tiki/dole whip vibe that i wasn’t 100% diggin buuuut for fall i’m going for a 60s vibe (that i haven’t really seen a lot of at previous dapper days) loosely based on kermit the frog because i couldn’t really find a lighter green turtle neck for underneath the darker green pinafore but this whole this is really to ask does anybody have tips on how to style my hair for the 60s? i was thinking of wearing my green beret since my hair is so short any tips would be great!