He's got an engineer in mind that could build it with thrown away microwaves and old garbage. With the tech and materials available on the Moira, he's got no doubt she can pull it off, and fast.

(where are you, Alphys, he's thumbs upping in your direction whilst volunteering you for shit. fun!!)

And that sounds perfect. All the rest of the items taken from them, too. Sans remembers some C-Primary wine at the bar (because of course he does), they should sweep the shit and return everything they can. Every single weird glass bauble. Kinda morbid to have around anyway, right?