Already tried good ol' Wally World, but they didn't have them, which surprised me. They did have a few flamingos but those weren't as interesting to me as the gnomes for some reason... At halloween they did have these awesome foam rubber rats about 18 inches high for $3... didn't pick any up, though... should have.
Maybe I could get a decent one and make a mold, then fill it with plaster? That might be expensive though... anyone else? Cheap plastic lawn gnomes? Anyone have real gnomes stealing your socks from the dryer that you'd like to get rid of?