Maybe not for very little kids but "Alonzo the Brave and the Fair Imogine" by Matthew Gregory Lewis c1790. (adapted, I believe, by the great Sam Cowell in the mid 19th century) Has the immortal lines:

....The worms they crept in and the worms they crept out
And sported his eyes and his temples about.....

The whole song takes about 10 minutes to sing but around a camp fire with friends with long attention spans it's a beauty.