Black craft paint
The darkest gray craft paint
And I'll explain that other thing later
I started this one by just painting the whole box black. I was able to use a foam craft brush and it went very quickly.
I did my usual grid layout from a template online, and added in the gray (more than I thought there would be)
Now for the weird part. His eyes are suppose to glow purple. What I recommend doing is finding purple lighting gels to cover the eye holes. What I actually did was buy a packet of plastic dividers from the school supply section and cut the purple one to size making it two layers thick. This is probably a horrible idea. It could melt or burst into flames maybe, but I decided to risk it and promise to keep a paranoid eye on it Halloween night.
For extra glow eyes I found a string of all purple holiday lights. I cut a square out of the back to thread the lights through and taped them to hang inside the box for a bit of a three dimensional effect.
Here is our full finished stack for the year.
The teal one on top is for The Teal Pumpkin Project. Basically, it means our house offers both candy and a "not candy" treat option for the kids with allergies. We participate because something as simple as a peanut should not steal all the fun from the night for a kid.