I decided to try my hand at making my own rock. I've got the time and I really enjoy DIY projects. I've got NO experience w/ cement so this should be a good learning experience.;D Supplies: 1 bag of cement, 92 lbs. 2 bags crushed oyster shells, 50 lbs each 1 bag salt (for water softeners) sand large rubbermaid containers (I know....way too much supplies, but if I mess up I don't have to worry about running out!:biggrinbo) I made up the first batch today. Tried 1 part cement, 2 parts crushed oyster shells, 3 parts salt. The salt came in pellets, which were too large to use as they were. I had a clear plastic bag in my garage so I put some of the pellets in there and crushed them with a hammer...probably took 5 minutes. I mixed the cement and crushed oyster shells first, put in enough water to a consistency like oatmeal then mixed in the salt. I put the sand in one of the rubbermaid containers and hollowed out where the cement should go. I'm not sure how this will go, I've never used cement before so I'm not sure what it's supposed to look like. After a couple days I'll pull the rock out of the sand and put in water. didn't get any pics of it today, but I'll try to get some when I pull the first rock out. If anyone has suggestions, I would love to hear them.