Tiny

Tiny is a giant, who makes an appearance in The Hammer of Thor, when he makes Magnus Chase, Alex Fierro, Samirah al-Abbas, Hearthstone, and Blitzen carry his bag.

The Hammer of Thor
Tiny meets Magnus Chase, Alex Fierro, Samirah al-Abbas, Hearthstone, and Blitzen heading to the giants, and makes them carry his bag, which is humongous. Blitz manages to transform the bag into a smaller version of itself, so that they would be able to carry it.