here is another artist Naminagi he focus on object and inanimated transformations well he only did one doll TF but did several plushie TF mostly from Touhou
doll TF
http://nagica.x.fc2.com/illustgallery/j130315.html
ぬいぐるみ化 (nuigurumi ka) are the plushie TF
http://nagica.x.fc2.com/illust.html#nuigurumi
he also has a pixiv account but doesn't post much TF
http://www.pixiv.net/member.php?id=147863