Brad,
Unfortunately I do not have photos to share but I am fond of bells as they remind me of the first course I ever worked, Lake Bonaventure CC in Castlewood, VA. Both the par 5 sixth and par 4 eighth had bells and there was always a sense of pride felt when a well struck tee shot came to rest beyond the bells. The par 5 fifth hole at Southern Pines GC has a bell and I find it charming as it takes me back to my youth.
One other low frill alternative I've encountered to this method is a flag. I don't recall the hole number but Link Hills CC in Greeneville, TN had a par 5 where players raised a bright colored flag to the top of a pole adjacent to the cart path, then lowered it after moving on from the blind landing zone.