Max is a dinosaur (and please do not let him hear you call him a monster) and Wyatt is a monster (he does not care what you call him as long as there is candy and food involved).
Lauren made the costumes (see Wyatt's shadow?) and she made Max's first.
I secretly hoped that Wyatt's costume would look like Rodan, Mothra or Gamera the flying turtle, but that didn't happen.
They both looked awesome.