All the wigs in collections transform into each other. So for November 2013, the Heavy Crystal Ball is in the collection and if you pick that you can transform it to the Jar of Memories or Powerful Old Wand.

That particular collection has a few transformables. The Ethereal Elven Cordial can transform to the Empty Elven Cordial. The Forest Hunter Totem and Bountiful Feast Totem also transform into each other. :)

In the News posts for collections, I generally try to have all wig transformables on one line along with other transforming items. Example here where it has the wigs on one line, the elven drinks, and the totems on their own lines. :)