Stego's tail spikes, called a thagomizer, could grow up to 90cm (3 ft) in length! They would swoosh it around to protect themselves from predators. Their distinct backplates have also been a hot topic of debate with conflicting views on whether it's just an aesthetic, or it fulfills some functionality!
Good for nature AND for you! EUGY encourages creativity as well as being environmentally friendly.
So go on...bring home your wild!