On older SM's the portlights and some of the cabin doors were held open with black rubber "mushrooms". After 20 years ours are starting to degrade. I have never seen them available from Goiot (the original manufacturer) and Maude says Amel has none left in stock.
Anybody else already solve this problem and care to share? I have a couple ideas of varying degrees of elegance but haven't finalized my thoughts yet...