Looking to get a SUPER short haircut tomorrow...any suggestions?

Hello, again! It's been a while.

I have an appointment to get another haircut tomorrow.

Currently, I have an undercut. This is pretty much how it looks right now, but slightly different as these pictures were from the last time I needed a haircut.

Really, what I'm looking for is a super short haircut (it grows SO fast, so even if it ends up looking weird, it won't last long) that I barely have to do anything with (maybe just throw in a little bit of product), that won't get all matted and crazy when I wear a hat (I wear a beanie during the majority of the winter season).

So, what I'd like to do is just walk in and say "Just cut it really short, making it so that it will work well under a beanie, but still look good if I'm not wearing a hat. Keep the undercut, but the length on top can be whatever."

However, I go to a beauty school, and my student stylist really does best when I come in with pictures, and it sounds like her teachers have an easier time helping her if they can see pictures as well.

So, does anyone have any pictures that would help illustrate this?