We have _ at home

Rolling your own, for better or worse. &#xA; Internet: Running your own AS . &#xA; Hair electrolysis machine : happy for the author, I&rsquo;m still terrified. &#xA; Ferrofluid : involving &ldquo;the wonderfully smelling and somewhat neurotoxic hexane.&rdquo; &#xA; Lasers&hellip;, well, think carefully.