These are all the lost skins I was able to find so far from the Boy Skin’s app by SeusCraft, most of them were found by searching “Boy” and filtering the years to 2013 and 2012, with one of them from 2014 (and of course _King_Alex_’s finding).

overall this is a pretty decent handful but it is far from complete, the app featured over a hundred or two hundred skins and not all of them could be found using the boy filter, so the search is still ongoing.