
This giant floating keychain is advertised as floating up to 5 oz; That's the biggest styrofoam I've ever seen! Since my keychain has a total weight of 4.25 ounces, it might work. although I haven't done any experiment to confirm this! Like all comparable plastic foam covered floats it will probably look quite worn by the end of the sailing season. But at the same time it will upset the woman less if I lose my keys (often) and curse like a sailor looking for them. They come in a 2-pack for about $13. a small price to pay for peace at home and fewer chances to dive into the mud looking for lost keys.

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