Footnotes: On "New" Molds
Sculpting a new mold can be an expensive and time-consuming process, sometimes it's just easier to make a few changes to an existing mold and cast a new mold from the customized body.
Dressage Horse & Vintage Lipizzaner
It is believed that the current Dressage Horse was adapted from the Vintage Lipizzaner. The Vintage Lipizzaner is heavier in build and differs subtly in various ways, but the relationship between the molds appears clear.
The earlier Dressage Horse models more closely resemble the Vintage Lipizzaner; the current mold may have been resculpted slightly since it was first released, though these changes might just be the natural result of ageing molds and the process of recasting a new mold.
Welsh Cob & Mule
Current examples of resculped "new" molds include the Mule which was created from a slightly resculpted Welsh Cob in 2010, and the Feathered (or Hairy) Cob, simply the Farm Cob with feathers, in 2009. The Farm Cob itself is a resculpted version of the HOTY Cob.
Farm Cob & Feathered Cob
Casting altered and resculpted pet models as a new mold is fairly common occurence. Sometimes a customer will request a complicated customisation which proves popular, but too difficult to recreate repeatedly from scratch, so a new mold is made. Examples of this include the Border Collie, Corgi, Flying Pheasant, and Fox Terrier.