We have had them at AKL (every day), POFQ, and at CBR. It really depends on the mousekeeper. The mousekeeper at AKL was really imaginative and creative.
Now, when we stayed at BCV (October 2003) the mousekeepers had a class in which they showed us how to make the towel animals! Really, really nice! Be on the lookout for it (if they still have it) - I believe it was in the smaller of the 2 common rooms (library?) in the villas (1st floor).