The official Dragon Ball website’s seventy-first entry in “The Nearly Complete Works of Akira Toriyama” — an on-going series highlighting rare and important pieces of the author’s work over the years — is the illustration used for the cover of the November 2010 issue of Armour Modelling (released 13 October 2010):
The illustration depicts Japanese folklore hero Momotarō along with his dog, monkey, and pheasant companions in a Type 89 medium tank, used by the Imperial Japanese Army for roughly a decade between 1932 to 1942:
The magazine came with FineMolds-branded parts to create a model of said tank: