They look just like the real household products, but have screw-off bottoms providing access to a "secret" hiding spot.

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Henceforth someone trying to build an engine could pluck a standard 8-gauge, 32-threads-per-inch machine screw off the shelf.

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Pop off the antenna, collapse it, and screw it into the attached charm -- "geeky" doesn't even begin to describe it.

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Leveling the platform is a particularly important step -- after all, if things are off by mere fractions of an inch, it can screw prints up completely.

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