The Grim Adventures of Billy and Mandy.
Although not from my childhood, I do have fond memories of this show.
All parts are broken into colors. Using black, white, red, and silver/gray filament, no painting will be needed. You may need to color in the eyes, eyebrows, mouth, and the lines on the hands with a fine tipped permanent marker.
I built in supports on the hand. No other supports are needed. Brims may be needed for the arms and hands.
Finished model measures about 120 mm tall.