When the Titanic really was sinking, and all the lifeboats were gone, baker Charles Joughin hit on a more practical plan for the deckchairs: he threw them overboard.
As he told the British Inquiry into the disaster, he threw fifty chairs into the icy Atlantic through the ports of B deck. “Was it to give something to cling to?” he was asked. “I was looking out for something for myself, Sir”, he replied.
In James Cameron’s Titanic, Joughin appears as a comedy drunk; he’s right there clinging to the rail next to Jack and Rose as the ship goes down.
In real life, he had the last laugh. He let go of the rail at the very last moment, and told the inquiry “I do not believe my head went under the water at all. It may have been wetted, but no more”.
Joughin never needed his floating deckchairs; he managed to clamber onto an upturned lifeboat, and survived the sinking.