Bardford, same principle, but smaller. The one sold back then was well-finished, 12-14 inches, much like a high end motorboat in appearance with windshield. I think it cost $5, which was a lot in the 1930s. There was a little pan which slid out and would take about a half teaspoon of Sterno- a careless kid could set himself alight, these toys would be banned today. We touched a match to the Sterno and shoved the pan under the little boiler. In a minute, off the boat would go. It was a little large for the bathtub, so I would head for the city park fountain which had an encircling pool.
Just remembered another favorite. A cast iron mortar. A rubber ball would be crammed into the mouth with a firecracker behind it. There was a little hole in the top through which the fuse would stick out. Yes, I took out a neighbor's window and lost the use of it. My parents didn't notice the cracked stucco on our house until later.