Handy around the house, gentle looking demeanor, and eight soft and fluffy legs that can wrap around your entire body for superior cuddles.

100% Pure Waifu.
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and I'm trapped on the wrong side of the computer screen

A moth's is softer, a Spider's is much stronger. The latter one so much, that if you could get enough to not only make clothing but also make it somehow thick, you could make an actual armor, and one very light and pretty strong too.