Frank, you're an "old school" guy, why not make them from gasket material?

Search results for "gasket material" at Ace Hardware

The old, "tap, tap, tap" routine with a small ball-peen hammer has never failed me.

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“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now