When Reginald Koala comes to see Hayley after their date at the carnival is interrupted by Jeff Fischer in "Bully for Steve", he finds her making a clay pot and sings Little Girl at the Pottery Wheel to her to cheer her up when she can't decide between the two.
Reginald: Little girl at the pottery wheel
Take your time, figure out how you feel
And when you're ready to be mine
You'll be ready for koala-ty time