Nice Balls, Bob!
Instead of using "fenders" to buffer the boat from the dock I came up this idea. Four of these little jewels (2 per side) hooked to the dock. This eliminates putting fenders over the side on while the boat is docked and then removing them while sailing.
I like easy.
It's not uncommon for sailor friends to yell out, "HEY BOB!!! NICE BALLS YA HAVE THERE!"
Check the last photo out. See the lifeline hanging on the side of the boat? I disconnect the lifelines while it's docked to eliminate the many nesting swallows from sitting on them and taking a crap. Saves a lot of clean-up that's really not necessary if you know how to out fox the birds.