Help For An Audition Please?!

Okay so my school is doing a production of Jack and the Beanstalk and I want to audition to be Daisy the cow (I know, who would want be to audition to be a cow? Well I do, I have a cow onesie and I want to wear it) but the teachers directing the play want me to sing in the play and I need a song that would be relevant for auditioning to be Daisy the cow. I was thinking about singing Skinny Love and saying moo moo moo instead of my my my, this is a comedy version of Jack and the Beanstalk and I thought it would bring a couple of laughs :) But I really need help with this so if anyone has any ideas please let me know!! Thanks, moo :D