Create An Arrow With Unity3D

I'm creating an obstacle course type game in which I have many different platforms that do different things. One of them is when the player steps on, it slowly pushes them in one direction. I have the scripts for each individual direction (up, down, right, left), however I have no idea how to indicate which direction the specific platform will be pushing the player.

Basically what I want is to have my platform and have an arrow pointing in the direction it pushes. So how do I create an arrow (no colliders or rigidbody, just like a picture that doesn't affect the player at all, Or even embedding the word "Left" into the platform).

Or if there are any other simple suggestions as to how to indicate i would appreciate that as well (For example a triangle instead of an arrow thats stretched on one side to indicate the direction)

Thanks in advance.