There's a couple of warrior-like Gundams that have their own little comics in Japanese, the GunPla models come with them, you can find them at www.gundamstoreandmore.com In Gundam Wing, Chang Wufei's Gundam is codenamed Shenlong Gundam and one forearm resembles the Chinese dragon it is named after; its upgrade includes such an attachment on both arms, though its reinterpretation for Endless Waltz, the attachments look more serpent-like than dragon-esque. G Gundam's Dragon Gundam had dragons on its arms similar to Shenlong and Altron