You can make a mold incorporating the legs. I'm pretty sure that the picture on the home page of the hypertufa forum is made this way. The girl that made it use to be on this forum and I think, but not sure, that it was made with a mold from Sherri Hunter's book. Some people use blocks of wood wrapped in plastic and placed in the bottom of your mold. I like ridgid foam insulation sheets, you can cut any shape with a razor knife and the hypertufa doesn't stick to it. You cut one long piece that runs the length of the inside of your mold then cut two pieces that will fit in the center on either side of the long piece. You place the wood or foam in the bottom of your mold. Duct tape can be put across the seams. When you look inside it will look like a " +", (plus sign). There should be empty spaces in the corners for your mix. Make sure you make the legs big enough to support the planter and blend with the design. You don't want tiny legs on a big planter. Make sure when filling the mold that you fill the leg molds first and tamp with a stick to remove any air pockets
You can add legs after the cure with adhesive or attach them before completely cured with more of the mix that you used for the planter or a little mortar mix. If you attach them before completely cured the planter is fragile so you've got to be careful. Does it matter if the legs match the planter? If so make the legs when you make the planter. If it doesn't matter, make the legs from any mix and recess them back from the edge. If their a little under the planter you won't notice the color difference. Unless you have my sister around and she notices everything.
Hope this helps. Billie

Thanks for the info, Billie. Can't wait to try it.

Carol

Carol, I was hoping you could understand it. The first time I heard it I was scratching my head for awhile...
This is a fun hobby and there's so much you can do with it. And I'm glad to see you have a name, lol! Billie