Photo credit: Creative Commons (located at https://gooloc.com/hand-drawn-funny-expressions-vector-icons/amp/)
Linked below, I have an assignment sheet for an activity that I have my art class do at the beginning of the year to develop stories with more emotions. Students are creating 45 different facial expressions that show a broader set of unique emotions, which they will later use for the characters that they will create.
45 Expressions – updated Sept 2017
Listed below are some more resources for drawing eyes, noses, mouths, and complete facial expressions:
1) A Bunch of Expressions
Photo credit: sharkie19
2) Eye Tutorial
Photo credit: artofpan
3) Eyes
Photo credit: Griz and Norm
4) Eyes Expressiveness Study
Photo credit: Azeher
Here is a second page of eye expressions from Azeher.
4) Nose Tutorial
Photo credit: artofpan