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Put a bit of spare sheet metal over the hole and let the pressure differential hold it down. For added safety affix a post-it not with DO NOT REMOVE written on it in all capital letters and underlined. They can even use those special zero-g ballpoint pens they spent eleventy-billion dollars inventing back during the johnson administration.
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Oh come on you can't be serious.

Clearly this needs some JB-Weld :P

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Flex Seal would be my suggestion. It works as seen on TV
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"To show the powerful adhesion of flex-seal, I sawed this space station in half!"
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