Creating Your Own Headboard

We have a very odd shaped Master Bedroom. I think it used to be the Garage. It is long and skinny. I have been wanting to make a headboard for quite some time. Then I ran across this tin roof headborad and thought how cute. However, I do worry about the rough edges. So when I was wandering my local Lowes, I ran across this tin backsplash stuff. It is made to look like tin, it comes in colors and it is plastic, yes plastic. Looks real, easy to put up and cut, so it may do the trick.

Or, I will go with a bold color wall. Still thinking. Any ideas?