One of my smallest dino-customizations, I (once again) just had to mess with one of Mr. Araki Kazunari's fine Ankylosaur sculpts (see my earlier kitbash of his 1/20 scale Ankylosaurus).
In this case, I took Mr. Araki's 5.5" Ankylosaurus sculpt released as part of the Kabaya dinosaur collection, and replaced the tail and about 20 of the side spikes with those from a mini-Sega Ankylosaur sculpt.