Which toy story characters are sold only at disney world?

The provided sources list characters from the Toy Story franchise but do not mention any exclusive merchandise or characters sold only at Disney World. Therefore, there is no confirmed evidence that any specific Toy Story characters are available solely at Disney World. Without additional documentation, we cannot state which, if any, characters are exclusive to that location. Any claims about exclusive Disney World Toy Story items would require further verification from official Disney or Pixar retail sources.