My first, 1966 was a piece of 1x6 pine with a "Key" type steel roller skate taken apart and the halves attached to both ends. BUT no lean to steer capability. My board was not even rounded on the ends nor square cut. A lot like the top board in the picture. LOL It was fugly.
I saved up for a "store bought" board, $5. It was made out of maple and walnut, it looked a lot like the easy to throw together cutting boards you see on Youtube. Its wheels stuck like glue and steered much unlike the steel fixed wheels on my home made board.