Struggling to come up with a way to connect a shop vacuum to the odd-size port on a sander, I spotted a tennis ball installed as a rail-guide bumper on my bandsaw.

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Struggling to come up with a way to connect a shop vacuum to the odd-size port on a sander, I spotted a tennis ball installed as a rail-guide bumper on my bandsaw. Eureka!

Using hole saws the same diameter as the hose and tool ports, respectively, I drilled through a tennis ball to make a custom-fit adaptor. It works great!
—Bob Muller, Westford, Mass.