Amazing Bike Lawn Mowers, article by Warren McLaren on Treehugger. Too funny. I believe that when I saw one of these in some old friends yard ( you know who you are), it was called, A Redneck Lawnmower.
Green fence: Living willow hedges are sustainable and aesthetically pleasing. They provide almost instant screening, even in winter. They establish very quickly after planting and create an attractive green hedge in as little as 2 months.
Living fence How-To from The Best of Mother Earth News. This illustrates an Osage orange living fence. The article gives other examples of how the fence can provide medicine and fodder for the livestock too.