Palaan, Maker of Many Things

{u}, {t}: Create a Scrap token. (It's an artifact with
"{1}, Sacrifice this artifact: Untap target noncreature artifact.)
{1}{u}, {t}: Create an Upgrade token. (It's an
artifact with "{1}, Sacrifice this artifact: Untap target artifact creature.)
{2}{u}, {t}: Create a 2/2 colorless Construct
artifact creature token.