flowerbug
Garden Master
The farmer that works the fields around the house likes to plant two extra rows into our yard each spring. He's my father's boss and a nice guy, he just can't see where the line is anymore because the herbicide applications kill out the grass next to the field. I have gotten passive aggressive about it and conveniently left out something big right on the edge of the yard when they are planting. Usually my wheelbarrow or a lawnmower. It embarrasses my father, but I'm tired of losing more yard space every year to field corn. I'm debating dropping a shed right on the edge, just to make my point in a way big enough my father can't move it after I go to work.
T-Bars, pounded a few feet in the ground. tie a bright rag around the top or paint them a bright color. can't be easily removed...