In the water three weeks now, our test buoy still rides high. Made of galvanized stovepipe and using an extendable/retractable 10 lb barbell weight, it's one-fifth the weight of its commercial brethren, and far cheaper to make. And look, a carrying strap!

In the water three weeks now, our test buoy still rides high. Made of galvanized stovepipe and using an extendable/retractable 10 lb barbell weight, it’s one-fifth the weight of its commercial brethren, and far cheaper to make. And look, it even has a carrying strap!

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