Moving away from Stranges for a while, saw this to be a potential dropper as it is added to the TF2 drop system once again. Many sellers on Classifieds which are at a key or so, many key sellers at a key or 6 ref.

Sold/Selling ≤1 (notes)

http://backpack.tf/stats/8900/6/0 (Less than half of them selling for less than a key, the rest untouched for barely a day. Will let them linger for a while longer before considering them as proof)

http://www.tf2outpost.com/trade/15379894 (Still young, will see whether it is bought quickly)

http://www.tf2outpost.com/trade/15379292 (Still young, will see whether it is bought quickly)

http://www.tf2outpost.com/trade/15379238 (Still young, will see whether it is bought quickly)

http://www.tf2outpost.com/trade/15379667 (Still young, will see whether it is bought quickly)

http://www.tf2outpost.com/trade/15380044 (Still young, will see whether it is bought quickly)

http://www.tf2outpost.com/trade/15380311 (Still young, will see whether it is bought quickly)

http://www.tf2outpost.com/trade/15375568 (3 hours without any buyers)

http://www.tf2outpost.com/trade/15375295 (3 hours without any buyers)

http://www.tf2outpost.com/trade/15375612 (3 hours without any buyers)

http://www.tf2outpost.com/trade/15376318 (3 hours without any buyers)

http://www.tf2outpost.com/trade/15379500 (Selling for offers, none yet)

- http://backpack.tf/stats/8900/6/0 (All selling above a key haven’t been tended to, the only one sold was a 3 ref offer of which I have no idea in re-extracting the offer)

Feel free to give counter suggestions and more proof. 

Have a nice day! 
:P

P.S: I have noticed that since I’m still on trade probation, I am unable to comment on my own suggestion. Would help if someone could teach me on how to override this? Will also add more proof as the time passes on.