Should I have asked for black marble?

Got a call from the builders. They've been having a wee bit of trouble finding sills for the new windows off the shelf. So, they're going to have them cut specially--by the local (literally up the road from us) monumental masons. Now, we've always made a habit of buying locally--the kitchen was done by people on East Road; the bathroom, laminate flooring by folk on our road--but I'd not planned on using the funeral directors... yet.

I somehow feel I've wasted an opportunity here and we should really go for something Gothic. Or inscribed. Or shiny marble. I think I'll settle for explaining that the window sills are offcuts from gravestones.