DH hates slippers - thinks they're really naff - and has been wearing a pair of v strange black "things" around the house that are black and similar to mules in style, now falling apart. He can't remember where he bought them, what make they are, so I can't replace them (yay!) but what do I get instead? He won't like anything like a conventional moccasin - or anything the likes of M&S has to offer... Any suggestions? 