8-segment co-co antenna, in a bit of PVC overflow pipe, attached to the world’s most ad-hoc mast (it doesn’t blow over in the wind too often! There’s a brick attached to the base 
)
Amazingly this gets 200NM with no amplifier…
https://www.dropbox.com/s/30riv80xo339ydu/coco-smaller.jpg?dl=1
(click to embiggen)
