The rules aren't very clear. Level 5 doesn't make sense, I completed one level when I made 5 squares and one rectangle, and also squares can be inside squares. Someone who has not already developed lateral thinking skills may not be able to come to those conclusions.
This is what I went through for 16: Blue, right earmuff on, red, right earmuff off, top santa hat on, red, right earmuff on, blue, right earmuff and top santa hat off, suspender and both earmuffs on, orange, both earmuffs off, wide belt on, blue, suspender off, short bobble hat on, orange, short bobble hat and wide belt off, long bobble hat on, blue, suspender on, red, long bobble hat and suspender off. Not complete. Am I making a mistake?