Here is an assortment of my own charades. Children who learn to recite patriotic songs, religious hymns, etc., that they haven't ever read create remarkable mondegreens. Here are some dandies.
Golomb, Solomon W.
"More Charades and Mondegreens,"
Word Ways: Vol. 43
, Article 8.
Available at: http://digitalcommons.butler.edu/wordways/vol43/iss2/8