When we were remodeling our house 
we had occasion to do a fair amount of tile work
 and one of the projects was a front gate. 
Years before I had bought a whole pallet of Indiana limestone 
in 3/4" and 2" thick x 2' square pieces at the local stone yard
 that was left over from a large order. 
They wanted to get rid of it
 and gave me a great price to take it all away.
The last bits of it I used on top of the stone pilasters 
as part of the gate project.
To see how I did this go to the post: