Posting my husbando in the husbando thread(!).
>>57736129>TQA few strands of his silky brown hair would more than suffice. To show off that impeccable curl of his, I always imagined that he arose a little extra early in order to set his hair just right. Once he finishes from the bath, I could waltz in and collect a couple of follicles for myself. Said follicles could then be safely stowed away or preserved for my own comfort.
My less orthodox answer would be a very tiny vial containing a sampling of his blood, which I would then either wear, or keep alongside my precious jewellery. Such a notion has always been incredibly romantic to me, with a macabre touch that is just enough to say "he's mine". As for how I would go about collecting that or even wear it, well, that would a whole other story.