I don't understand. Why would you want to sculpt anything other than Godzilla or Kaiju?
::edit:: flipped through the Yuji Sakai "Godzilla Dream" book last night. As the cover would suggest is mostly Godzilla related. There are plenty of diorama elements that he sculpted (buildings, rubble, water, mountains, rocks, spaceships, lasers) but I only saw one human (Eiji Tsuburaya) and the FF stuff GiganGoji mentioned