Need a sculptor/builder for Music Video Prop

Looking for someone to build a prop for a music video I'm producing in Richmond. The shoot date is March 4th. We are looking for a big monolith made to look like it's concrete. Something along the lines of the monolith in 2001: A Space Odyssey. Except instead a black obsidian material, we're looking for something concrete or brutalist. Maybe something like 6-7' high. Should be fake material so it doesn't actually weigh too much and can be smashed in the video easily.