I need one minute of simple guitar music but I don't know how to get it

[NailyDale]

There is a song I often sing with my class. Very simple children's song.
I have rewritten the words to make it about them, as a surprise.
But I don't know how to get just the guitar (or maybe ukulele) background music to play so we can sing it with a background. I can't play the guitar (or maybe ukulele) and I don't know anyone who does well enough to ask them.

Any ideas?

Try some of the free music sites such flutetunes.com
Google free guitar music and several sites come up with guitar solos for a wide range of music that can be used. You might get lucky and find what you are looking for. Or just try Googling for the song as a solo instrumental?
edit to add: or ask in a Facebook page for your locality - a music student or teacher might help you out and record what you need.