Does anyone have any experience in building concrete furniture or countertops? There are places that build beautiful countertops, table tops, furniture out of concrete & I'd like to build a stand that is basically skinned of concrete / made of it for a custom acrylic tank shaped like a triangle for a mantis shrimp / macro tank. Kind of looking if anyone has any suggestions on the best way to build it, I'll be googling it in a sec but if someone in NJ has made one I'd like to know personal experience.