The entire model (elephant and cube) are folded from one 10 inch by 30 inch sheet of wrapping paper.
The cube part of the model was inspired by John Montroll's Cube of Squares folded in “Origami Inside Out” The actual procedure is quite different. (there are 4 white surface squares, not 6)
The elephant is based on a model I learned in the 1960's, I believe created by George Rhodes in a Robert Harbin Book. I did some significant modification so the elephant could be one segment of the complete model.
The method of combining the two into one model is my own conception.