I use a fender like this: Taylor Made Products Super Gard Inflatable Vinyl Boat Fender (5.5" x 20", Navy Blue) https://www.amazon.com/dp/B000MJKNII/re ... rxb9Q7T4KC
I run a single line through both holes and make a loop through a carabiner on each end using rolling hitches. The carabiners clip to forward and aft ama bungees. The rolling hitches allow the height of the fender to be adjusted. When not in use, it can be shortened and clipped to an aka or stowed below deck. I haven't had a problem with it flipping up on the ama.
The photos were taken in my garage for illustration.
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