Now I'm sure that this will drop after some time.

Sold for a Smoking Pyromancer's Mask(59 Keys, likely offered as the coldsnap owner commented before being banned)(Credits to Marty Birdman for spotting it)

http://backpack.tf/profiles/76561198034095893?time=1425024000 -> http://backpack.tf/profiles/76561198034095893?time=1425110400

http://www.tf2outpost.com/trade/25044855

Sold for a Cloudy Moon Hot Dogger(28 Keys with Overpay), an Aces High Geisha Boy(12 Keys with Overpay), an Aces High Cyborg Stunt Helm(8.5 Keys with Overpay) and ~5.5 Keys in Sweets(54 Keys total)

http://backpack.tf/profiles/76561198055395994?time=1425628800 -> http://backpack.tf/profiles/76561198055395994?time=1427785200

Two sales, 54-59 Keys should be fine.

Additional Proof/Counter-Proof/Constructive Criticism/Feedback is always appreciated.