Black coping - options?

[success1980]

Hi all,

 

I have a white rendered boundary wall with black, powdercoated railings panels. I am now looking for coping stones to give the wall the finishing touch. 

 

Can anyone recommend options for black coping stones? Will need to be black to match the panels.

 

Thanks 

[markc]

aluminium or cast your own in dyed concrete

[Onoff]