To the best of my knowledge, no. There have been double barreled front loading derringers on the market, but I don't know if they still are.
Navy Arms used to sell a twist barreled .36 call two-shooter, but it was not much smaller than a .38 Snubby. It had imitation mother of pearl stocks and a blue/black barrel cluster. It looked like a three barreled pistol, but the center hole was for the screw holding the barrel to the reciever.
Some company marketed a brass side x side .36 cal withtow hammers and one trigger. Last time I saw one advertised it was something like $50.00 for a kit.
Both guns were smoothbored so they should make OK snake guns.