bumper protectors

[aska13]

Hi,

I park my mazda3 hatchback on the street. Does anyone know any way to protect car's bumpers? I was thinking of seeing mechanic re. it, but I am afraid 1. they'll charge me a lot 2. this is something i can easily do myself.
I am really nervous about rear bumper..it really sticks out. Any ideas..?

Thanks!!!