I find it works best to get yourself the biggest box of crayons you can find:
Are you sitting comfortable? With your crayons? Then let's begin!
from Fantastic Four vs. the Frightful Four Coloring Book (1983)
Color the Thing orange.
Color Mr. Fantastic's uniform blue.
Color the Invisible Girl's face bright pink because from her expression, we know she is clearly drunk.
Don't color the Human Torch. He is dead.
from Marvel Super-Heroes Super Activity Book (1983)
Color the Hulk green.
Color the grass and trees green.
Color the mountains green. He is in Vermont.
What the heck, color the sky green.
Are you worried about Hulk?
Don't worry! Hulk always gets it in the end.
Color Loki's outfit green and gold. Loki is kind of a jerk, isn't he?
Color Thor's hair blonde. If you can find his neck, color that pink.
Loki looks pretty ticked off that Thor answered his riddle. Maybe you shouldn't have waved the magic pencil in his face, Loki.
If Heimdall was in this picture, you could color him any color you want.
from Marvel Super Heroes Secret Wars: The Crime Of Centuries Coloring Book (1984)