Colin gives a nice selection of lyrics up above (click). As somebody who spent 8 years in seminary, the verses just seem cute to me. I don't see them as offensive at all, Mo. I do concede that some might take offense at the derivation from "Darkies' Sunday School." But many songs from racist times, used racist terms with no intention of being hateful. I think those songs can be cleaned up and used without causing offense to anyone but the most sensitive people.
-Joe-

There's a nice rendition of "Mormon Sunday School" here:

https://www.youtube.com/watch?v=wZi9FNbhNj4