I need some violin sheet music?

hey, me and two other kids are preforming in a trio with violins. some song that we wanted to do are; elenor rigby(Beatles), think of me(POTO), Battle hymn of the republic, the old red white and blue, and any patriotic songs that aren't the cliche ones. the price would have to be under te bucks and if you find a good deal, just post the website and ill look at it. id prefer it to be free, but who wouln't like that?