Maybe rh good idea would be to create some web page where people could offer their new or used clothes, accessorize, shoes and similar stuff for Bitcoins. Similar sites where people are selling their clothes for fiat have quite success, at least in my country, so something like this for Bitcoin users would be probably popular too.
This can be a good idea, in this way many of us can earn some extra bitcoins. Just if this is not to hard to create, for example how much is shipping for one t-shirt from Europe to Asia? The cost of clothes sometimes is so small that is not worth to ship it so far, and shipment can cost more then the desired clothes.
All I know if bitcoin wish to become mainstream this is part where bitcoin need to be present, fashion industry worth a lot each year, and bitcoins should have part of it.