Fifty years ago, the February 1969 issue of Popular Science showed “The Floater,” an AM radio in the shape of a buoy that, well, floated.

It was billed as being suitable for pools and lakes, or even the bathtub, but the magazine noted that it was not suitable for use in salt water.  The set sold for about $20.

If you’re looking for a modern replacement, the following radios available at Amazon have varying levels of water resistance.