Last summer I made my first set of hypertufa planters. They have the look of rough cement, but are quite lightweight.
Perlite, Sphagnum Peat Moss, Portland Cement, Water, Cooking Spray (I used Pam), Large bucket or something to mix your ingredients in, Rubber gloves, Particle mask, Safety glasses, Various plastic or cardboard containers to use as molds
Wear your rubber gloves, particle mask and safety glasses!!! Portland cement can be nasty if inhaled, gets on your skin or in your eyes. Don't make me come over there and put them on you!
Mix equal parts of Perlite, Sphagnum Peat Moss and Portland cement. Add enough water to make it a cottage cheese like consistency.
Spray your containers with cooking spray and then fill the areas between the two items with the mixture.
Wrap your planters-to-be in a plastic garbage bag and patiently wait for them to harden. I let mine dry for 24 hours in the bag and then 4 days outside the bag.
A little more detail can be found on my post, which is linked below, and I also show you how to make a sphere.
Warning - these are sort of addictive to make. You will find yourself making them in all sorts of shapes and sizes.
UPDATE - I have successfully made a hand! I tried it again after tweaking a few things and it worked this time. You can see it on Hometalk at http://www.hometalk.com/1508311/can-someone-... and on my blog at http://www.houseofhawthornes.com/2013/05/hyp...