User blog comment:The Milkman/1.8 Title Update (English) Now Available on Xbox LIVE/@comment-149.241.34.27-20121120125516/@comment-69.235.18.66-20121120213523

I believe they are quest items to bi given to someone in solitude, I forget who, but to start it you have to talk to one of the kids there.

If this doesn't work, perhaps its a glich