Following are a number of back-translations as well as a sample translation for translators of Isaiah 44:12:

• Kupsabiny: “A craftsman takes iron and creates (it)
  putting it in fire.
  He repeatedly beasts the iron/metal with a hammer
  until what he wants appears/is seen.
  Then, that man gets hungry and tired,
  he is thirsty to point of fainting.” (Source: Kupsabiny Back Translation)
• Newari: “The metalworker takes a piece of metal
  and he uses a tool to heat metal in the fire,
  and by striking it with a hammer, he bring out the shape of an idol.
  He does the work with his own strong arm.
  As he works, he becomes hungry and his strength become less.
  He gets thirsty and weak.” (Source: Newari Back Translation)
• Hiligaynon: “The carpenter of metal puts the metal in the live-coal/ember. Then he hammers it with-force in-order to form a little-god. He becomes-weak of hunger and almost faint of thirst.” (Source: Hiligaynon Back Translation)