MODS: If this is in the wrong forum for this, please move it for me.
I recently acquired fully functioning Pepsi machine FOR FREE from a friend who had no place for it at his house.  I'm interested in replacing the PEPSI logo plexi on the front with something else.  It's not a huge piece of plexi, maybe 36tall by 14 wide or something.  
I can get a piece of plexi from Home Depot that size for like $14.  I'd want to just print something in that case that I could just tack onto the back of it.  Probably some kind of transparency.  I'd need to print something that could be backlit easily.
Does anyone have any idea what I should be looking for?  Media type, ink type, place to get it done (can Kinkos do it) etc?.