I found this on Permies.
A small circular Hugelkulture bed design. I found this on the forums at Permies.com from a guy by the name of Chris Dean. I like the look of it and he used a rough cob to hold it all together. The center is an area to dump compost and water. I think I could incorporate this into my stone wall fence project with one or two on the low part of the yard.
I think the hardest part will be filling this with dirt, since all I have are my hands and a few small tools.