Cheap Dorm Room Hack on 0$ Budget

So i wanted to make my blank door little more exciting on a 0 budget.

1. Door or something
2. A sharpie
3. Guts.
4. A little bit of creativity. :)

I stole the marker from my school.

Step 1: It's Really Simple

I just drew a cartoon face with black marker on my blank door. It did scare quite a few people at night.

Step 2: Here Is a Closer Look at Drawing

Please share with me your creations. I would like to see what the community did with this idea. :)

Step 3: Cheap Dorm Room Hacks With $0 Budget.