As I recall, these were like the Valentines day gifts. Meaning the skins were unlocked instantly, not just added to your backpack. Meaning they can't be traded. I think that they can be earned/dropped, though I'm not sure. Grindfest (talk) 15:59, March 19, 2013 (UTC)
Thanks so much for the info. Kinda sucks I missed it. But I'll be keeping an eye out for others. Also, once unlocked is there any way to trade old skins??