2 usable sales at the moment, and one is a pure sale.

Sold for 2 buds + 27 keys + 9 ref = ~3.7 http://i.imgur.com/26M7ZxE.png http://imgur.com/NmlC7nq

Sold for a P.E. pot http://www.tf2outpost.com/trade/22432942 3.9*0.9 = 3.5

http://www.tf2outpost.com/trade/22954230 Community Sparkle Luger (duped) for flies TC, ghosts trophy, pro aussie scattergun (really hard to put a price on the luger)

http://i.imgur.com/WTq0yad.png http://i.imgur.com/OHArneO.png Added pro SF sniper + 24 keys in sweets to his ghosts trophy for a purple energy one (using in the other suggestion, considering the ghosts at 3.7)

Any additional proof/feedback is appreciate.

If you feel like my suggestion is wrong, feel free to make another one yourself. I won't be mad :)