"Shipwreck" springs to mind, especially with the wooden one.
Not sure I get that.
Heh it was complimentary!
Like the wood of an old sailing ship and the metal bits corroded after it had been under the water for many years.
Those two keycaps evoke, in me anyway, the smell of the ocean, the sound of the waves, the call of a lonely gull perched on something you find sticking out of the water at the beach.
I went to the beach one, but I didn't take my keyboard.