You can make a lot of things with hypertufa, a light-weight concrete mixture made from Portland cement, vermiculite or perlite, and peat moss. Basically put it in any mold and let it harden. I've seen it put in disposable gloves to make a cement hand. You can make pots for plants, cement furniture, whatever you can think of.
You can play around with the mixture too. Basically, it's 1/3 Portland cement and 2/3 other stuff. I used an equal amount of peat moss and perlite for the rocks, because the peat moss makes a better texture for the outside of the rocks. Using all perlite or vermiculite, omitting the peat moss, will give smaller pores in the rocks. I've also seen leaf castings made with saw dust used in place of the peat moss and vermiculite to give a smoother mixture.
Make sure you wear a dust mask when you're working with the dry cement. You don't want to breathe in cement dust. Also, get a pair of heavy rubber gloves to use for mixing the hypertufa. The disposable latex ones don't hold up too well.
Take a look at the video I made (it's been on YouTube awhile). It shows everything you need to get started.
Thanks for reading.
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