Wow! That's a tough one.
The only thought I might add other than what's already been stated... how about a clock> You'd still have to fill in your 4 screw holes and probably make a smaller plater for the clock to pass through but, It might be made to look pretty good.
Here's one I was looking at the other day:
http://www.tpigauges.com/Quartz%20Clocks.htm

1954 Chevy 3100 Panel Truck
2004 GMC Yukon
2002 Chevy 1500 4X4
"Those who expect to reap the blessings of freedom, must, like men, undergo the fatigues of supporting it."
Thomas Paine, The American Crisis, No. 4, September 11, 1777